Operating System - Multiple Choice Questions

 1. Which of the following is an example of utility.

A. Antivirus 

B. Word 

C. Operating system 

D. Data recovery 

Answer = Antivirus

2. Which is built directly on the hardware.

A. Computer Environment 

B. Application Software 

C. Operating System 

D. Database System 

Answer = Operating System

3. ...... system is built directly on the hardware 

A. Environment 

B. System 

C. Operating 

D. None 

Answer = Operating

4. The purpose of run command in start menu is to 

A. Launch internet browser 

B. Open internet explorer 

C. Open windows explorer 

D. Start programs 

Answer = Start programs

5. You can select My Computer icon and press Alt + Enter to 

A. Delete it from desktop permanently 

B. Open it in Explorer mode 

C. Open System Properties dialog box 

D. Pin it on Start menu 

Answer = Open System Properties dialog box

6. Under multiprogramming, turnaround time for short jobs is usually _____ and that for long jobs is slightly _____.. 

A. lengthened; shortened 

B. shortened; lengthened 

C. shortened; shortened 

D. lengthened; lengthened 

Answer = shortened; lengthened

7. The most common systems security method is 

A. passwords 

B. encryption 

C. firewall 

D. all of the above 

Answer = passwords

8. Two basic types of operating systems are:. 

A. sequential and direct 

B. batch and timesharing 

C. sequential and realtime 

D. batch and interactive 

Answer = batch and interactive

9. Daisy chain is a device for 

A. connecting a number of controllers to a device 

B. connecting a number of devices to a controller 

C. interconnecting  a number of devices to a number of controllers 

D. all of the above 

Answer = connecting a number of devices to a controller

10. In analyzing the compilation of PL/I program, the term  " Machine independent optimization "  is associated with 

A. recognition of basic syntactic constructs through reductions 

B. recognition of basic elements and creation of uniform symbols 

C. creation of more optional matrix 

D. use of macro processor to produce more optimal assembly code 

Answer = creation of more optional matrix

11. The ....... contains commands associated with the My Computer window 

A. Standard menu 

B. Start menu 

C. System menu 

D. None of the above 

Answer = System menu

12. ....... is the layer of a computer system between the hardware and the user program 

A. Operating environment 

B. Operating system 

C. System environment 

D. None of these 

Answer = Operating system

13. Which is the layer of a computer system between the hardware and the user program 

A. Operating environment 

B. Operating system 

C. System environment 

D. None 

Answer = Operating system

14. When you start up the computer the boot up storage at which the BIOS versions manufacturer and data are displayed on the monitor is called 

A. Bootstrap 

B. Power on self test (POST). 

C. System configuration 

D. Kernel loading 

Answer = Power on self test (POST)

15. The operating system is the most common type of ...... Software 

A. Communication 

B. Application 

C. System 

D. Word processing software 

Answer = System

16. If there are multiple recycle bin for a hard disk 

A. You can set different size for each recycle bin 

B. You can choose which recycle bin to use to store your deleted files 

C. You can make any one of them default recycle bin 

D. None of above 

Answer = You can set different size for each recycle bin

17. Identify false statement 

A. You can find deleted files in recycle bin 

B. You can restore any files in recycle bin if you ever need 

C. You can increase free space of disk by sending files in recycle bin 

D. You can right click and choose Empty Recycle Bin to clean it at once 

Answer = You can increase free space of disk by sending files in recycle bin

18. If the displayed system time and date is wrong, you can reset it using 

A. Write 

B. Calendar 

C. Write file 

D. Control panel 

Answer = Control panel

19. You should save your computer from.

A. Viruses 

B. Time bombs 

C. Worms 

D. All of the above 

Answer = All of the above

20. World Wide Web is being standard by 

A. Worldwide corporation 

B. W3C. 

C. World Wide Consortium 

D. World Wide Web Standard 

Answer = W3C

21. The process of transferring data intended for a peripheral device into a disk (or intermediate store) so that it can be transferred to peripheral at a more convenient time or in bulk, is known as 

A. multiprogramming 

B. spooling 

C. caching 

D. virtual programming 

Answer = spooling

22. Block caches or buffer caches are used 

A. to improve disk performance 

B. to handle interrupts 

C. to increase the capacity of the main memory 

D. to speed up main memory read operation 

Answer = to improve disk performance

23. Which of the following statements is false.

A. a small page size causes large page tables 

B. internal fragmentation is increased with small pages 

C. a large page size causes instructions and data that will not be referenced brought into primary storage 

D. I/O transfers are more efficient with large pages 

Answer = internal fragmentation is increased with small pages

24. The action of parsing the source program into the proper syntactic classes is known as 

A. syntax analysis 

B. lexical analysis 

C. interpretation analysis 

D. general syntax analysis 

Answer = lexical analysis

25. Which, of the following is not true about the description of a decision table.

A. A decision table is easy to modify 

B. A decision table is directly understood by the computer 

C. A decision table is easy to understand 

D. All of the above 

Answer = A decision table is directly understood by the computer

26. You can switch from one program to another on the desktop by clicking within the desired program's window or by clicking on its ...... button 

A. Icon 

B. Taskbar button 

C. Folder 

D. None of above 

Answer = Taskbar button

27. You can switch from one program to another by clicking within the desired program's icon from the 

A. Application icon on desktop 

B. Application icon from taskbar 

C. Folder 

D. None of above 

Answer = Application icon from taskbar

28. Virtual memory typically located on 

A. RAM. 

B. CPU. 

C. Flash card 

D. Hard drive 

Answer = Hard drive

29. What is contained in the page table.

A. Base address of each frame and corresponding page number 

B. Memory address and corresponding page number 

C. File name and corresponding page number 

D. None of Above 

Answer = Base address of each frame and corresponding page number

30. Tree structure displays the 

A. File only 

B. Directory only 

C. File and directory name 

D. None of above 

Answer = Directory only

31. Which of the key is used to close the active window.

A. Ctrl+F4. 

B. Ctrl+F5. 

C. Alt+F6. 

D. None of above 

Answer = None of above

32. The shortcut key to open a task manager is:. 

A. Alt + F1. 

B. Alt + Ctrl + Delete 

C. Alt + Tab 

D. F1. 

Answer = Alt + Ctrl + Delete

33. The windows feature is the ability of computer to automatically configure a new hardware component is that 

A. Auto detect 

B. Plug and play 

C. Add remove hardware 

D. None of above 

Answer = Plug and play

34. Which of the following is not a part of the control panel.

A. Date and time 

B. My documents 

C. Add or remove program 

D. Display 

Answer = My documents

35. The ...... provides information about hardware installation, configuration and hardware status 

A. Device manager 

B. Control panel 

C. Add new hardware 

D. Program manager 

Answer = Device manager

36. A relocate program form is one which 

A. cannot be made to execute in any area of storage other than the one designated for it at the time of its coding or translation. 

B. consists of a program and relevant information for its relocation. 

C. can itself performs the relocation of its address-sensitive portions 

D. all of the above 

Answer = consists of a program and relevant information for its relocation

37. If you want to execute more than one program at a time, the systems software you are using must be capable of:. 

A. word processing 

B. virtual memory 

C. compiling 

D. multitasking 

Answer = multitasking

38. In analyzing the compilation of PL/I program, the description  " resolving symbolic address (labels) and generating machine language "  is associated with 

A. Assembly and output 

B. Code generation 

C. Storage assignment 

D. Syntax analysis 

Answer = Assembly and output

39. Round-robin scheduling 

A. allows interactive tasks quicker access to the processor 

B. is quite complex to implement 

C. gives each task the same chance at the processor 

D. allows processor-bound tasks more time in the processor 

Answer = gives each task the same chance at the processor

40. What is the name of the system which deals with the running of the actual computer and not with the programming problems.

A. Operating system 

B. Systems program 

C. Object program 

D. Source program 

Answer = Systems program

41. The term  " operating system "  means 

A. a set of programs which controls computer working 

B. the  way  a  computer  operator works 

C. conversion of high level language into machine code 

D. the  way  a  floppy  disk  drive operates 

Answer = a set of programs which controls computer working

42. Which of the following might be used to convert high-level language instructions into machine language.

A. system software 

B. applications software 

C. an operating environment 

D. an interpreter 

Answer = an interpreter

43. Indicate which is a pre-emptive scheduling algorithm 

A. Round-robin 

B. Shortest-job-next 

C. Priority-based 

D. All of the above 

Answer = Round-robin

44. Which of the following, is necessary to work on a computer 

A. Compiler 

B. Operating system 

C. Assembly 

D. Interpreter of the above 

Answer = Operating system

45. Access time is the highest in the case of 

A. floppy disk 

B. cache 

C. swapping devices 

D. magnetic disk 

Answer = magnetic disk

46. A ....... is a named location on a disk where files are stored 

A. Folder 

B. Pod 

C. Version 

D. None of the above 

Answer = Folder

47. Which type of command requires additional files to perform specific operations.

A. Internal commands 

B. External commands 

C. Valuable commands 

D. Primary commands 

Answer = External commands

48. Which of the following is system software.

A. Operating system 

B. Compiler 

C. Utilities 

D. All of the above 

Answer = All of the above

49. A user-interface that is easy to use is considered to be 

A. User-happy 

B. User-simple 

C. User-friendly 

D. None of the above 

Answer = User-friendly

50. A ..... is a flash memory storage device that plugins into a USB port 

A. USB snap drive 

B. USB flash drive 

C. USB memory maker drive 

D. None of above 

Answer = USB flash drive

51. Generally quick launch toolbar is displayed on 

A. the left side of taskbar 

B. the right side of taskbar 

C. on the middle of taskbar 

D. a bar out of taskbar 

Answer = the left side of taskbar

52. Which is not a valid file system.

A. FAT 16. 

B. FAT 32. 

C. NTFs 

D. FXZ. 

Answer = FXZ

53. Which file system DOS typically use.

A. FAT 16. 

B. FAT 32. 

C. NTFs 

D. LMFs 

Answer = FAT 16

54. Which file system Windows 95 typically use.

A. FAT 16. 

B. FAT 32. 

C. NTFs 

D. LMFs 

Answer = FAT 32

55. Which of the following is not a mode in starting Windows.

A. Command Prompt 

B. Safe Mode 

C. Normal Mode 

D. Turbo Mode 

Answer = Turbo Mode

56. Poor response times are caused by 

A. Processor busy 

B. High I/O rate 

C. High paging rates 

D. Any of the above 

Answer = Any of the above

57. Link encryption 

A. is more secure than end-to-end encryption 

B. is less secure than end-to-end encryption 

C. can not be used in a public network 

D. is used only to debug 

Answer = is less secure than end-to-end encryption

58. A form of code that uses more than one process and processor, possibly of different type, and that may on occasions have more than one process or processor active at the same time, is known as 

A. multiprogramming 

B. multithreading 

C. broadcasting 

D. time sharing 

Answer = multithreading

59. The table created by lexical analysis to describe all literals used in the source program is 

A. Terminal table 

B. Literal table 

C. Identifier table 

D. Reductions 

Answer = Literal table

60. The term 'polling' in a computer means a process by which a computer system 

A. detects/corrects errors 

B. multiplexes the inputs and updates the memory accordingly 

C. decides correct alternative by analysing several ones 

D. inquires to see if a terminal has any transaction to send 

Answer = inquires to see if a terminal has any transaction to send

61. The main function of the dispatcher (the portion of the process scheduler) is 

A. swapping   a process to the disk 

B. assigning ready process to the CPU. 

C. suspending some of the processes when the CPU load is high 

D. bring processes from the disk to the main memory 

Answer = assigning ready process to the CPU

62. The errors that can be pointed out by the compiler are 

A. Syntax errors 

B. Semantic errors 

C. Logical errors 

D. Internal errors 

Answer = Syntax errors

63. When a computer is first turned on or restarted, a special type of absolute loader is executed, called a 

A.  " Compile and Go "  loader 

B. Boot loader 

C. Bootstrap loader 

D. Relating loader 

Answer = Bootstrap loader

64. Which, of the following checks, cannot be carried out on the input data to a system.

A. consistency check 

B. Syntax check 

C. Range check 

D. All of the above 

Answer = Syntax check

65. A program that converts a high-level language program to a set of instructions that can run on a computer is called a 

A. Compiler 

B. Debugger 

C. Editor 

D. All of the above 

Answer = Compiler

66. ....... is an intermediate storage for deleted files 

A. My computer 

B. My documents 

C. Recycle bin 

D. None of above 

Answer = Recycle bin

67. We can start the application from.

A. Log off 

B. Network place 

C. Recycle bin 

D. Run 

Answer = Run

68. Which of the following is not process states.

A. New 

B. Running 

C. Ready 

D. Finished 

Answer = Finished

69. In DOS, the maximum length of filename is 

A. 5. 

B. 8. 

C. 11. 

D. 10. 

Answer = 8

70. The tion mark (?) indicates in file searching 

A. A single character 

B. A group of character 

C. 

tions 

D. None of above 

Answer = A single character

71. Once text has been cut to the clipboard, you can ...... that text into another document 

A. Paste 

B. Copy 

C. Transfer 

D. None of the above 

Answer = Paste

72. What is the function of radio button.

A. To select multiple option 

B. To select single option 

C. To select all option 

D. All of above 

Answer = To select single option

73. The Banker's algorithm is used 

A. to rectify deadlock 

B. to detect deadlock 

C. to prevent deadlock 

D. to solve deadlock 

Answer = to prevent deadlock

74. The primary purpose of an operating system is:. 

A. To make the most efficient use of the computer hardware 

B. To allow people to use the computer 

C. To keep systems programmers employed 

D. To make computers easier to use 

Answer = To make the most efficient use of the computer hardware

75. You can use print manage window 

A. To check status of files in the print queue 

B. To cancel the print job 

C. To interrupt printing 

D. All of the above 

Answer = All of the above

76. The principles of structured programming forbid the use of 

A. WHILE-DO. 

B. GOTO. 

C. IF-THEN-ELSE. 

D. DO-WHILE. 

Answer = GOTO

77. Which of the following capabilities is required for a system program to execute more than one program at a time.

A. word processing 

B. compiling 

C. virtual memory 

D. multitasking 

Answer = multitasking

78. For Windows 10, Microsoft released _________ in place of MS Paint. 

A. Paint 10. 

B. New MS Paint 

C. Paint 3D. 

D. Universal Paint 

Answer = Paint 3D

79. Which of the key is used to close the active window.

A. Ctrl+F4. 

B. Alt+F4. 

C. Alt+F6. 

D. Ctrl+F5. 

Answer = Alt+F4

80. A bar that inform you the available options in your computer, opened applications, background running applications and can be used to switch between applications quickly is 

A. Menu bar 

B. Tool bar 

C. Status bar 

D. Task bar 

Answer = Task bar

81. Which components appear in the initial windows start up display.

A. Dialog box 

B. Task bar 

C. Start menu 

D. All of the above 

Answer = Task bar

82. Taskbar is used for 

A. Navigation program 

B. Switching between program 

C. Start a program 

D. All of above 

Answer = All of above

83. To install the new font in window XP. 

A. Start -> setting -> control panel -> font 

B. Start -> setting -> control panel -> font -> install new font 

C. Start -> control panel -> font -> install new font 

D. Start -> setting -> font 

Answer = Start -> setting -> control panel -> font -> install new font

84. When a peripheral device needs immediate attention from the operating system, it generates a(n). 

A. Interrupt 

B. Spool 

C. Stack 

D. Page file 

Answer = Interrupt

85. Recently deleted files are stored in 

A. Recycle bin 

B. Desktop 

C. Taskbar 

D. My computer 

Answer = Recycle bin

86. Which components appear in the initial Windows start up display.

A. Dialog boxes 

B. Start menu 

C. Taskbar 

D. All of above 

Answer = Taskbar

87. A small part of taskbar that has icons of background running applications is 

A. Start button 

B. Quick launch 

C. Task bar 

D. System tray 

Answer = System tray

88. An operating system version designed for use with a media center PC is Microsoft Windows XP. 

A. Home edition 

B. Media center edition 

C. Tablet PC edition 

D. None of above 

Answer = Media center edition

89. An operating system version designed for use with a tablet PC is Microsoft Windows XP. 

A. Home edition 

B. Media center edition 

C. Tablet PC edition 

D. None of the above 

Answer = Tablet PC edition

90. Which of the following is/are external commands.

A. Edit 

B. Label 

C. Sys 

D. All of above 

Answer = All of above

91. Which is not an external command.

A. Edit 

B. XCOPY. 

C. Sys 

D. None of the above 

Answer = None of the above

92. Which of the following is not essential to shut down your computer.

A. Save all opened files 

B. Close all running applications 

C. Switch off monitor 

D. Cut off the power supply 

Answer = Switch off monitor

93. What is Dr Watson.

A. IT Expert 

B. Diagnosis tool 

C. Surgeon 

D. None 

Answer = Diagnosis tool

94. You can move a window to a different position on your screen by dragging it by its 

A. Move handle 

B. Tail 

C. Status bar 

D. Title bar 

Answer = Move handle

95. The function of Dir/W is 

A. Show all details of file 

B. Show only file name and directory name 

C. Shows only directory 

D. All of the above 

Answer = Show only file name and directory name

96. Page stealing 

A. Is a sign of an efficient system 

B. Is taking page frame from other working sets 

C. Should be the turning goal 

D. Is taking layer disk space for page in page out 

Answer = Is taking page frame from other working sets

97. What do you mean by dialog box.

A. Interactive message box 

B. Group of options 

C. Set of controls 

D. All of the above 

Answer = All of the above

98. Dial up connection allows you to 

A. Connect ISP. 

B. Internet 

C. Server 

D. All of above 

Answer = Connect ISP

99. To properly exit Windows 

A. Click the stop button on the desktop 

B. Click the exit button on the desktop 

C. Select shut down from Start menu 

D. None of above 

Answer = Select shut down from Start menu

100. Advantage(s) of using assembly language rather than machine language is (are):. 

A. It is mnemonic and easy to read. 

B. Addresses any symbolic, not absolute 

C. Introduction of data to program is easier 

D. all of the above 

Answer = all of the above

101. Which of the following is not true about the memory management.

A. virtual memory is used only in multi-user systems 

B. segmentation suffers from external fragmentation 

C. paging   suffers   from   internal fragmentation 

D. segmented memory can be paged 

Answer = virtual memory is used only in multi-user systems

102. Job Control Language (JCL) statements are used to 

A. Read the input from the slow-speed card reader to the high-speed magnetic disk 

B. Specify, to the operating system, the beginning and end of a job in a batch 

C. Allocate the CPU to a job 

D. All of the above 

Answer = Specify, to the operating system, the beginning and end of a job in a batch

103. Paging 

A. is a method of memory allocation by which the program is subdivided into equal portions, or pages and core is subdivided into equal portions or blocks 

B. consists of those addresses that may be generated by a processor during execution of a computation. 

C. is a method of allocating processor time. 

D. allows multiple programs to reside in separate areas of core at the time. 

Answer = is a method of memory allocation by which the program is subdivided into equal portions, or pages and core is subdivided into equal portions or blocks

104. Which of the following is not true about documentation.

A. Documentation, of a system, should be as clear and direct as possible 

B. Documentation increases the maintenance time and cost 

C. Documentation gives better understanding of the problem 

D. All of the above 

Answer = Documentation increases the maintenance time and cost

105. When we double click on my computer 

A. Show the content of your saved files 

B. Show the list of your computer drive 

C. List of deleted files and folders 

D. All of the above 

Answer = Show the list of your computer drive

106. Which of the following is the part of the operating system.

A. Cell 

B. FAT. 

C. Kernel 

D. Disk 

Answer = Kernel

107. Directory is similar to ....... 

A. File 

B. Folder 

C. Item 

D. None of above 

Answer = Folder

108. Sleep is a good mode to use because 

A. It saves power which in true is saving money 

B. It makes computer fresh after it wakes up 

C. It consumes low battery when you start it again 

D. All of above 

Answer = It saves power which in true is saving money

109. What hole will allocates in  " Worst-Fit "  algorithm of memory management.

A. It allocates the smaller hole than required memory hole 

B. It allocates the smallest hole from the available memory holes 

C. It allocates the largest hole from the available memory holes 

D. It allocates the exact same size memory hole 

Answer = It allocates the largest hole from the available memory holes

110. Non-modifiable procedures are called 

A. serially usable procedures 

B. concurrent procedures 

C. reentrant procedures 

D. topdown procedures 

Answer = reentrant procedures

111. The instruction register 

A. is a hardware memory device which denotes the location of the current instruction being executed. 

B. is a group of electrical circuits (hardware), that performs the intent of instructions fetched from memory. 

C. contains the address of the memory location that is to be read from or stored into. 

D. contains a copy of the designated memory location specified by the MAR after a  " read "  or the new contents of the memory prior to a  " write " .. 

Answer = is a group of electrical circuits (hardware), that performs the intent of instructions fetched from memory

112. Which of the following scheduling objectives should be applied to the following: the system should admit jobs to create a mix that will keep most devices busy 

A. to be fair 

B. to balance resource utilization 

C. to obey priorities 

D. to be predictable 

Answer = to balance resource utilization

113. Multiprogramming systems:. 

A. are easier to develop than single programming system 

B. execute each job faster 

C. execute more jobs in the same time period 

D. are used only on large mainframe computers 

Answer = execute more jobs in the same time period

114. Backups should be done 

A. daily for most installations 

B. weekly for most installations 

C. as several image copies, followed by an incremental 

D. as several incrementals, followed by an image copy 

Answer = as several incrementals, followed by an image copy

115. Driver is 

A. Hardware controller 

B. Hardware and gain controller 

C. Data controller 

D. All of above 

Answer = Hardware controller

116. System files allocated at 

A. Boot area 

B. FAT area 

C. Data area 

D. Directory 

Answer = Boot area

117. ...... transforms one interface into other interface 

A. Program 

B. Software 

C. Data 

D. None 

Answer = Software

118. ........ interface consists of thing like program counter, register, interrupts and terminal 

A. Hardware 

B. Software 

C. Data 

D. None 

Answer = Hardware

119. ....... show characteristics with both hardware and software 

A. Operating system 

B. Software 

C. Data 

D. None 

Answer = Operating system

120. Which of the following memory unit that processor can access more rapidly 

A. Main Memory 

B. Virtual Memory 

C. Cache memory 

D. Read Only Memory 

Answer = Cache memory

121. Small pictures appear on the desktop 

A. Windows 

B. Icon 

C. Button 

D. None of above 

Answer = Icon

122. A graphical user interface displays 

A. Graphics 

B. Text 

C. Both of Above 

D. None of Above 

Answer = Both of Above

123. To change the screen saver you can go from 

A. Control panel display 

B. Right click in desktop and properties 

C. Both of Above 

D. None of These 

Answer = Both of Above

124. You can add or remove program 

A. Add / Remove program from control panel 

B. Delete the shortcut icon from desktop 

C. Both A and B. 

D. None of Above 

Answer = Add / Remove program from control panel

125. Underlined character on the menu or dialog box known as 

A. Hot spot 

B. Hot key 

C. Pane 

D. Underline word 

Answer = Hot key

126. Which key deletes text before, or to the left, of the insertion point.

A. PageUp 

B. Delete 

C. PageDown 

D. BackSpace 

Answer = BackSpace

127. The chunks of a memory are known as 

A. Sector 

B. Offset 

C. Page 

D. Frame 

Answer = Frame

128. Start / restart the computer is called 

A. Exit 

B. Run 

C. Option 

D. Boot 

Answer = Boot

129. Which file is transferred when computer is start up.

A. Document 

B. Program files 

C. Operating system 

D. System files 

Answer = System files

130. Which of the following separates primary file and extension is 

A. Dot 

B. Period 

C. Point 

D. All of the above 

Answer = All of the above

131. In Microsoft windows, the graphical pattern on the desktop used as background for windows is 

A. Icons 

B. Wall paper 

C. Picture 

D. Background 

Answer = Wall paper

132. All of the following are task performed by the operating system except 

A. Managing hardware on the computer 

B. Controlling the access that application program has to the CPU. 

C. Performing housekeeping task like file compression and disk defragmentation 

D. Provides an interface for user to interact with computer 

Answer = Performing housekeeping task like file compression and disk defragmentation

133. Which of the following is not an operating system.

A. CP / M. 

B. Unix 

C. Pascal 

D. MS DOs 

Answer = Pascal

134. Operating system is like a 

A. Government 

B. Police 

C. Parliament 

D. All of above 

Answer = Government

135. Which of the following is characteristic of an operating system.

A. resource management 

B. error recovery 

C. memory management 

D. All the above 

Answer = All the above

136. In MS-DOS, relocatable object files and load modules have extensions 

A. .OBJ and .COM or .EXE, respectively 

B. .COM and .OBJ, respectively 

C. .EXE and .OBJ, respectively 

D. .DAS and .EXE, respectively 

Answer = .OBJ and .COM or .EXE, respectively

137. The state transition initiated by the user process itself in an operating system is 

A. block 

B. dispatch 

C. wake up 

D. timer run out 

Answer = block

138. Which of the following program is not a utility.

A. Debugger 

B. Editor 

C. Spooler 

D. All of the above 

Answer = Spooler

139. The function(s) of file system is (are):. 

A. to provide complete file naming freedom to the users and to permit controlled sharing of files 

B. to provide for long and short term storage of files with appropriate economic tradeoffs 

C. to provide security against loss of information due to system failure 

D. all of the above 

Answer = all of the above

140. An incremental backup 

A. should be done each month 

B. uses more tapes 

C. saves all files 

D. saves only files that have recently changed 

Answer = saves only files that have recently changed

141. The powerful text editor called PC-Write can be used by anybody by paying a small fee Such programs are called 

A. Software 

B. Shareware 

C. Firmware 

D. Mindware 

Answer = Shareware

142. The disadvantages of  " Compile and Go "  loading scheme is (are):. 

A. a portion of memory is wasted because the core occupied by the assembler is unavailable to the object program. 

B. it is necessary to retranslate the user's program deck every time it is run. 

C. it is very difficult to handle multiple segments, especially if the source programs are in different languages, and to produce orderly modular programs 

D. all of the above 

Answer = all of the above

143. The operating system of a computer serves as a software interface between the user and 

A. hardware 

B. peripheral 

C. memory 

D. screen 

Answer = hardware

144. Which of the following statement is true. 

A. The LRU algorithm pages out pages that have been used recently 

B. Thrashing is a natural consequence of virtual memory systems 

C. Seek analysis is used for analysing control-unit busy problems 

D. All of the above 

Answer = Seek analysis is used for analysing control-unit busy problems

145. Software that measures, monitors, analyzes, and controls real-world events is called:. 

A. system software 

B. real-time software 

C. scientific software 

D. business software 

Answer = real-time software

146. The details of all external symbols and relocation formation (relocation list or map) is provided to linker by 

A. Macro processor 

B. Translator 

C. Loader 

D. Editor 

Answer = Translator

147. The macro processor must perform 

A. recognize macro definitions and macro calls 

B. save the macro definitions 

C. expand macros calls and substitute arguments 

D. all of the above 

Answer = all of the above

148. A development strategy whereby the executive control modules of a system are coded and tested first, is known as 

A. Bottom-up development 

B. Top-down development 

C. Left-Right development 

D. All of the above 

Answer = Top-down development

149. Which of the following is helpful in evaluating applications software what will best suit your needs.

A. recommendations by other users 

B. computer magazines 

C. objective software reviews 

D. all of the above 

Answer = all of the above

150. In a magnetic disk, data is recorded in a set of concentric tracks which are subdivided into 

A. periods 

B. sectors 

C. zones 

D. groups 

Answer = sectors

151. The total time to prepare a disk drive mechanism for a block of data to be read from it is 

A. latency 

B. latency plus transmission time 

C. latency plus seek time 

D. latency   plus   seek   time   plus transmission time 

Answer = latency plus seek time

152. Part of a program where the shared memory is accessed and which should be executed invisibly is called 

A. semaphores 

B. directory 

C. critical section 

D. mutual exclusion 

Answer = critical section

153. Indicate which, of the following, is not true about Nassi-Shneiderman charts 

A. These charts are type of graphical design tool 

B. These charts cannot represent CASE constructs 

C. These charts can represent three fundamental control structures 

D. All of the above 

Answer = These charts cannot represent CASE constructs

154. What is the name of the operating system that reads and reacts in terms of actual time. 

A. Batch system 

B. Quick response system 

C. Real time system 

D. Time sharing system 

Answer = Real time system

155. Multiprogramming 

A. is a method of memory allocation by which the program is subdivided into equal portions, or pages and core is subdivided into equal portions or blocks 

B. consists of those addresses that may be generated by a processor during execution of a computation. 

C. is a method of allocating processor time. 

D. allows multiple programs to reside in separate areas of core at the time. 

Answer = allows multiple programs to reside in separate areas of core at the time

156. A translator which reads an entire programme written in a high level language and converts it into machine language code is:. 

A. assembler 

B. translator 

C. compiler 

D. system software 

Answer = compiler

157. The advantage(s) inherent to using high level languages is (are). 

A. Fewer people, less management and shorter transition in learning time 

B. Improved debugging capability, and superior documentation 

C. A greater degree of machine independence 

D. All of the above 

Answer = All of the above

158. Addressing modes 

A. defines the fundamental method of determining effective operand addresses 

B. are variations in the use of fundamental addressing structures, or some associated actions which are related to addressing. 

C. performs indicated operations on two fast registers of the machine and leave the result in one of the registers 

D. all of the above 

Answer = are variations in the use of fundamental addressing structures, or some associated actions which are related to addressing

159. In which way(s) a macro processor for assembly language can be implemented:. 

A. independent two-pass processor 

B. independent one-pass processor 

C. processor incorporated into pass 1 of a standard two-pass assembler 

D. all of the above 

Answer = all of the above

160. Data encryption 

A. is mostly used by public networks 

B. is mostly used by financial networks 

C. cannot be used by private installations 

D. is not necessary, since data cannot be intercepted 

Answer = is mostly used by financial networks

161. What is the name given to the process of initializing a microcomputer with its operating system.

A. Cold booting 

B. Booting 

C. Warm booting 

D. Boot recording 

Answer = Booting

162. The function(s) of the Storage Assignment is (are). 

A. to assign storage to all variables referenced in the source program. 

B. to assign storage to all temporary locations that are necessary for intermediate results 

C. to assign storage to literals, and to ensure that the storage is allocate and appropriate locations are initialized. 

D. all of the above 

Answer = all of the above

163. A Processor 

A. is a device that performs a sequence of operations specified by instructions in memory. 

B. is the device where information is stored 

C. is a sequence of instructions 

D. is typically characterized by interactive processing and time of the CPU. 

Answer = is a device that performs a sequence of operations specified by instructions in memory

164. With MS-DOS which command will divide the surface of the blank floppy disk into sectors and assign a unique address to each one.

A. FORMAT command 

B. FAT command 

C. VER command 

D. CHKDSK command 

Answer = FORMAT command

165. The ....... is a temporary storage area in memory where you can attach text or graphics information 

A. Clipboard 

B. Copyboard 

C. Both a and b 

D. None of above 

Answer = Clipboard

166. An embedded object might appear in a document as 

A. Embedding 

B. Linking 

C. Both 

D. None of above 

Answer = Embedding

167. When a computer is first turned on or restarted, a special type of absolute loader called 

A. Compile and go loader 

B. Boot loader 

C. Bootstrap loader 

D. Relating loader 

Answer = Bootstrap loader

168. In which type of the following OS, the response time is very crucial. 

A. Network Operating System 

B. Real Time Operating System 

C. Batch Operating System 

D. Unix Operating System 

Answer = Real Time Operating System

169. Which of the following is a correct association between a vendor and an operating system 

A. Redhat Linux 

B. Microsoft Unix 

C. AT & T DOs 

D. Novell Linux 

Answer = Redhat Linux

170. In an absolute loading scheme, which loader function is accomplished by assembler. 

A. Reallocation 

B. Allocation 

C. Linking 

D. Loading 

Answer = Reallocation

171. The command interpreter 

A. is usually the primary user interface 

B. requires fixed format commands 

C. is menu drive 

D. is quite different from the SCL interpreter 

Answer = is usually the primary user interface

172. A task in a blocked state 

A. is executable 

B. is running 

C. must still be placed in the run queues 

D. is waiting for same temporarily unavailable resources 

Answer = is waiting for same temporarily unavailable resources

173. System maintenance:. 

A. is usually not necessary 

B. is necessary on all systems, regardless of how good 

C. is not required if the system is well written 

D. always requires several programs 

Answer = is necessary on all systems, regardless of how good

174. Which of the following statements is not true about the FORTRAN language.

A. FORTRAN is a high level language 

B. A FORTRAN program, written for the IBM-PC, is totally different from a FORTRAN program written for execution on the SUN machine 

C. FORTRAN is extensively used to write programs for performing scientific computations 

D. All of the above 

Answer = A FORTRAN program, written for the IBM-PC, is totally different from a FORTRAN program written for execution on the SUN machine

175. What problem is solved by Dijkstra's banker's algorithm.

A. mutual exclusion 

B. deadlock recovery 

C. deadlock avoidance 

D. cache coherence 

Answer = deadlock avoidance

176. The dispatcher 

A. actually schedules the tasks into the processor 

B. puts tasks in I/O wait 

C. is always small and simple 

D. never changes task priorities 

Answer = actually schedules the tasks into the processor

177. System programs such as Compilers are designed so that they are 

A. reenterable 

B. non reusable 

C. serially usable 

D. recursive 

Answer = reenterable

178. IBM released its first PC in 1981. Can you name the operating system which was most popular at that time.

A. MS-DOs 

B. PC-DOs 

C. OS/360. 

D. CP/M. 

Answer = CP/M

179. If the number of bits in a virtual address of a program is 16 and the page size is 0.5 K bytes, the number of pages in the virtual address space is 

A. 16. 

B. 32. 

C. 64. 

D. 128. 

Answer = 128

180. Windows 2000 server uses the 

A. FAT 16. 

B. NTFs 

C. FAT 64. 

D. FAT 32. 

Answer = NTFS

181. First-in-First-Out (FIFO) scheduling is 

A. Non Preemptive Scheduling 

B. Preemptive Scheduling 

C. Fair Share Scheduling 

D. Deadline Scheduling 

Answer = Non Preemptive Scheduling

182. Which one of the following key is used to refresh the active window.

A. F7. 

B. F8. 

C. F9. 

D. F5. 

Answer = F5

183. To display system boot menu which of the following key you must press.

A. F4. 

B. F7. 

C. F8. 

D. F5. 

Answer = F8

184. Press ____ key while booting to display Advanced Boot Menu 

A. F5. 

B. F6. 

C. F8. 

D. Del 

Answer = F8

185. The ....... is the drive containing the files to be copied 

A. Source drive 

B. Destination drive 

C. USB drive 

D. None of the above 

Answer = Source drive

186. Which one of the following is not a multitasking operating system.

A. DOs 

B. Windows 

C. Unix 

D. Linux 

Answer = DOS

187. The most recent version of MAC OS is based on the ...... operating system 

A. Windows 

B. Linux 

C. Unix 

D. CMOs 

Answer = Unix

188. In Windows, start button is used to 

A. Run applications 

B. Device setting 

C. Turn off the system 

D. All of above 

Answer = All of above

189. Which one is true for unconditional disk formatting.

A. Destroys every byte of data on a disk by overwriting it with with blank spaces 

B. Do not check/scan surface after format 

C. Transfer system files after format 

D. All of above 

Answer = Destroys every byte of data on a disk by overwriting it with with blank spaces

190. Which is not a system tool.

A. Folder 

B. Backup 

C. Scandisk 

D. Format 

Answer = Folder

191. A utility that can be used to minimize the number of fragmented files and enhance the speed 

A. Disk space 

B. Defrag 

C. Scandisk 

D. Double space 

Answer = Defrag

192. To change the volume label 

A. Vol 

B. Label 

C. Scandisk 

D. None 

Answer = Label

193. Which of the following is a disk compression tools.

A. Drive space 

B. Defragmenter 

C. Scandisk 

D. None of the above 

Answer = Drive space

194. To save your computer from viruses you will do 

A. Install antivirus software and run it 

B. Make physical safe for the removal disk 

C. Scan the removable disk before using it 

D. All of the above 

Answer = Install antivirus software and run it

195. A public key encryption system 

A. allows  anyone  to  decode  the transmission 

B. allows only the correct sender to decode the data 

C. allows only the correct receiver to decode the data 

D. does not encode the data before transmitting it 

Answer = allows only the correct receiver to decode the data

196. Feed back queue 

A. are very easy to implement 

B. dispatch tasks according to execution characteristics 

C. are used to favor real-time tasks 

D. require manual intervention to implement properly 

Answer = dispatch tasks according to execution characteristics

197. In which addressing mode the operand is given explicitly in the instruction.

A. absolute mode 

B. immediate mode 

C. indirect mode 

D. index mode 

Answer = immediate mode

198. The technique, for sharing the time of a computer among several jobs Which switches jobs so rapidly such that each job appears to have the computer to itself:. 

A. time sharing 

B. time out 

C. time domain 

D. FIFO. 

Answer = time sharing

199. Capacity planning 

A. requires detailed system performance information 

B. is independent of the operating system 

C. does not depend on the monitoring tools available 

D. is not needed in small installations 

Answer = is independent of the operating system

200. Which of the following is a phase of a compilation process 

A. Lexical analysis 

B. Code generation 

C. Both of the above 

D. Static analysis 

Answer = Both of the above

201. Which are the most important features of Microsoft Windows program.

A. Windows 

B. Pull-down menus 

C. Icons 

D. All of the above 

Answer = All of the above

202. Which of the following system program forgoes the production of object code to generate absolute machine code and load it into the physical main storage location from which it will be executed immediately upon completion of the assembly.

A. two pass assembler 

B. load-and-go assembler 

C. macroprocessor 

D. compiler 

Answer = load-and-go assembler

203. Virtual memory is 

A. simple to implement 

B. used in all major commercial operating systems 

C. less efficient in utilization of memory 

D. useful when fast I/O devices are not available 

Answer = used in all major commercial operating systems

204. Object code 

A. is ready to execute 

B. is the output of compilers, but not assemblers 

C. must be  " loaded "  before execution 

D. must be rewritten before execution 

Answer = must be  " loaded "  before execution

205. ___ is a compromise mode between Shut Down and Sleep mode because it does not consume power and remembers the current state of your desktop 

A. Shut Down 

B. Restart 

C. Sleep 

D. Hibernate 

Answer = Hibernate

206. You should choose this mode if you don't know how long you won't use your computer but want to have the same desktop state when you resume 

A. Shut Down 

B. Restart 

C. Sleep 

D. Hibernate 

Answer = Hibernate

207. The category of operating system that you most likely have running on your PDA computer is a ....... Operating system 

A. Real time 

B. Single user, single task 

C. Single user, multitask 

D. Multiuser, multitask 

Answer = Single user, single task

208. Running multiple programs at the same time is called:. 

A. Multitasking 

B. Foreground tasking 

C. Single tasking 

D. Symmetric 

Answer = Multitasking

209. What is the meaning of  " Hibernate "  in Windows XP/Windows 7.

A. Restart the Computer in safe mode 

B. Restart the Computer in hibernate mode 

C. Shutdown the Computer terminating all the running applications 

D. Shutdown the Computer without closing the running applications 

Answer = Shutdown the Computer without closing the running applications

210. Assembler language 

A. is usually the primary user interface 

B. requires fixed-format commands 

C. is a mnemonic form of machine language 

D. is quite different from the SCL interpreter 

Answer = is a mnemonic form of machine language

211. The primary job of the operating system of a computer is to 

A. command resources 

B. manage resources 

C. provide utilities 

D. be user friendly 

Answer = manage resources

212. Which of the following is a measure to test how good or bad a modular design is 

A. Module strength 

B. Module coupling 

C. Static analysis 

D. All of the above 

Answer = Module strength

213. The Operating system manages 

A. Memory 

B. Processor 

C. Disks and I/O devices 

D. All of the above 

Answer = All of the above

214. The primary purpose of an operating system is to:. 

A. make computer easier to use 

B. keep system programmers employed 

C. make the most efficient use of the hardware 

D. allow people to sue the computers 

Answer = make computer easier to use

215. If special forms are needed for printing the output, the programmer specifies these forms through.

A. JCL. 

B. JPL. 

C. Utility programs 

D. Load modules 

Answer = JCL

216. Which policy replace a page if it is not in the favoured subset of a process's pages.

A. FIFO. 

B. LRU. 

C. LFU. 

D. Working set 

Answer = Working set

217. Which of the following can be accesses by transfer vector approach of linking.

A. External data segments 

B. External subroutines 

C. Data located in other procedures 

D. All of the above 

Answer = External subroutines

218. Which of the following terms refers to the degree to which data in a database system are accurate and correct.

A. data security 

B. data validity 

C. data independence 

D. data integrity 

Answer = data integrity

219. In analyzing the compilation of PL/I program, the term  " Syntax analysis "  is associated with 

A. recognition of basic syntactic constructs through reductions 

B. recognition of basic elements and creation of uniform symbols 

C. creation of more optional matrix 

D. use of macro processor to produce more optimal assembly code 

Answer = recognition of basic syntactic constructs through reductions

220. Who is called a supervisor of computer activity.

A. CPU. 

B. Os 

C. Control Unit 

D. Application Program 

Answer = OS

221. Font folder is located on 

A. Program folder 

B. Ms Word file 

C. Control Panel folder 

D. Desktop folder 

Answer = Control Panel folder

222. From where do you change mouse setting.

A. Setting >> mouse 

B. Hardware setting 

C. Control panel >> mouse 

D. None of the above 

Answer = Control panel >> mouse

223. Work group means 

A. Computer in network 

B. Individual user 

C. Connection 

D. All of the above 

Answer = Computer in network

224. The core of operating system is:. 

A. Unix 

B. Kernel 

C. Commandcom 

D. None of these 

Answer = Kernel

225. Which of the following command is used to switch between the window programs.

A. Alt+Tab 

B. Alt+F4. 

C. Ctrl+Tab 

D. None of the above 

Answer = Alt+Tab

226. To prevent the addition and deletion of files on a disk or tape we use 

A. Format 

B. Write protect 

C. Create back up 

D. None of above 

Answer = Write protect

227. During the boot process, the ..... looks for the system file 

A. CD. 

B. BIOs 

C. CPU. 

D. DVD. 

Answer = BIOS

228. Which of the following resources must be protected by the operating system.

A. I/O. 

B. Memory 

C. CPU. 

D. All of the above 

Answer = All of the above

229. What are the two types of Semaphore.

A. Digital Semaphores and Binary Semaphores 

B. Analog Semaphores and Octal Semaphores 

C. Counting Semaphores and Binary Semaphores 

D. Critical Semaphores and System Semaphores 

Answer = Counting Semaphores and Binary Semaphores

230. How can you optimize performance of your computer.

A. Delete unused files 

B. Defrag disk 

C. Scan for virus 

D. All of above 

Answer = All of above

231. Scandisk 

A. Checks the disk 

B. Give information about disk 

C. Run from DOS mode 

D. All of the above 

Answer = All of the above

232. Recently used application file list appears in the Windows operating system 

A. Setting menu 

B. Documents menu 

C. Run dialog box 

D. Programs menu 

Answer = Documents menu

233. ....... are specially designed computer chips that reside inside other devices, such as your car or electric thermostat 

A. Server 

B. Embedded computer 

C. Robotic computer 

D. Mainframes 

Answer = Embedded computer

234. The title bar always displays on 

A. Top of the open windows 

B. Left side of the open window 

C. Right side of the open window 

D. All of above 

Answer = Top of the open windows

235. Poor response time are usually caused by 

A. Process busy 

B. High I/I rates 

C. High paging rate 

D. Any of the above 

Answer = Any of the above

236. Where will store data first time when you copy 

A. Clipboard 

B. Clipbook 

C. Hard disk 

D. CD. 

Answer = Clipboard

237. GUI means 

A. Graphic user interface 

B. Geographic user interface 

C. Graphical user interface 

D. Geometric user interface 

Answer = Graphical user interface

238. Use of icons and windows are characteristics of ....... interface 

A. Command driven 

B. Windows orientated 

C. Graphical user 

D. Menu driven 

Answer = Graphical user

239. Windows can run 

A. One application only 

B. Two applications only 

C. Four applications only 

D. All of above 

Answer = All of above

240. What is the name of the operating system which was originally designed by scientists and engineers for use by scientists and engineers.

A. XENIX. 

B. UNIX. 

C. OS/2. 

D. MS DOs 

Answer = UNIX

241. The most common security failure is 

A. carelessness by users 

B. depending on passwords 

C. too much emphasis on preventing physical access 

D. insufficient technology used to prevent breaches 

Answer = carelessness by users

242. Terminal Table 

A. contains all constants in the program 

B. a permanent table of decision rules in the form of patterns for matching with the uniform symbol table to discover syntactic structure. 

C. consists of a full or partial list of the token's as they appear in the program Created by Lexical analysis and used for syntax analysis and interpretation 

D. a permanent table which lists all key words and special symbols of the language in symbolic form. 

Answer = a permanent table which lists all key words and special symbols of the language in symbolic form

243. Block or buffer caches are used 

A. to improve disk performance 

B. to handle interrupts 

C. to increase the capacity of main memory 

D. to speed up main memory read operation 

Answer = to improve disk performance

244. The practice of  " bundling "  refers to 

A. selling computers alone 

B. selling peripheral devices with computer 

C. selling software to run on computers 

D. giving  away  software  with  a computer purchase 

Answer = giving  away  software  with  a computer purchase

245. The system/370 assembler language 

A. allows the programmer to write base registers and displacements explicitly in the source program. 

B. is used to remember which of the general-purpose registers are currently available as base registers, and what base addresses they contain. 

C. allows multiple programs to reside in separate areas of core at the same time. 

D. is a term that refers to the control programs of an operating system. 

Answer = allows the programmer to write base registers and displacements explicitly in the source program

246. Scheduling is 

A. allowing jobs to use the processor 

B. unrelated to performance consideration 

C. not required in uniprocessor systems 

D. the same regard-less of the purpose of the system 

Answer = allowing jobs to use the processor

247. What scheduling algorithm allows processes that are logical runnable to be temporarily suspended.

A. preemptive scheduling 

B. non-preemptive scheduling 

C. FIFO. 

D. FCFs 

Answer = preemptive scheduling

248. In an absolute loading scheme, which loader function is accomplished by the loader 

A. Reallocation 

B. Allocation 

C. Linking 

D. Loading 

Answer = Loading

249. The computational technique used to compute the disk storage address of individual records is called:. 

A. bubble memory 

B. key fielding 

C. dynamic reallocation 

D. hashing 

Answer = hashing

250. A hardware device that is capable of executing a sequence of instructions, is known as 

A. CPU. 

B. ALU. 

C. CU. 

D. Processor 

Answer = Processor

251. Which of following is/are the advantage(s) of modular programming.

A. The program is much easier to change 

B. Modules can be reused in other programs 

C. Easy debugging 

D. Easy to compile 

Answer = The program is much easier to change

252. The function(s) performed by the paging software is (are). 

A. Implementation of the access environment for all programs in the system 

B. Management of the physical address space 

C. Sharing and protection 

D. All of the above 

Answer = All of the above

253. A compiler for a high-level language that runs on one machine and produces code for a different machine is called 

A. optimizing compiler 

B. one pass compiler 

C. cross compiler 

D. multipass compiler 

Answer = cross compiler

254. A critical region is 

A. a program segment that has not been proved bug-free 

B. a program segment that often causes unexpected system crashes 

C. a program segment where shared resources are accessed 

D. one which is enclosed by a pair of P and V operations on semaphores 

Answer = one which is enclosed by a pair of P and V operations on semaphores

255. Special software to create a job queue is called a 

A. Drive 

B. Spooler 

C. Interpreter 

D. Linkage editor 

Answer = Spooler

256. All the time a computer is switched on, its operating system software has to stay in 

A. main storage 

B. primary storage 

C. floppy disk 

D. disk drive 

Answer = primary storage

257. Can you name of the major Operating System used in computers.

A. MS DOs 

B. OS/2. 

C. UNIX. 

D. All of the above 

Answer = All of the above

258. Which of the following is not an advantage of multiprogramming.

A. increased throughput 

B. shorter response time 

C. decreased operating-system overhead 

D. ability to assign priorities to jobs 

Answer = decreased operating-system overhead

259. Virtual Memory 

A. is a method of memory allocation by which the program is subdivided into equal portions, or pages and core is subdivided into equal portions or blocks 

B. consists of those addresses that may be generated by a processor during execution of a computation. 

C. is a method of allocating processor time. 

D. allows multiple programs to reside in separate areas of core at the time. 

Answer = consists of those addresses that may be generated by a processor during execution of a computation

260. If you hard disk is partitioned into 3 drives, the number of recycle bin for that hard disk is 

A. 1. 

B. 2. 

C. 3. 

D. 4. 

Answer = 3

261. The date and time displays on 

A. Taskbar 

B. Status bar 

C. System tray 

D. Launch pad 

Answer = System tray

262. ...... runs on a computer hardware and serves as a platform for other system to run on 

A. Operating system 

B. Application system 

C. System software 

D. All of above 

Answer = Operating system

263. Which runs on computer hardware and serve as platform for other software to run on.

A. Operating System 

B. Application Software 

C. System Software 

D. All 

Answer = Operating System

264. Which is the first program run on a computer when the computer boots up.

A. System software 

B. Operating system 

C. System operations 

D. None 

Answer = Operating system

265. An instruction in a programming language that is replaced by a sequence of instructions prior to assembly or compiling is known as 

A. procedure name 

B. macro 

C. label 

D. literal 

Answer = macro

266. A program 

A. is a device that performs a sequence of operations specified by instructions in memory. 

B. is the device where information is stored 

C. is a sequence of instructions 

D. is typically characterized by interactive processing and time of the CPU. 

Answer = is a sequence of instructions

267. A self-relocating program is one which 

A. cannot be made to execute in any area of storage other than the one designated for it at the time of its coding or translation. 

B. consists of a program and relevant information for its relocation. 

C. can itself performs the relocation of its address-sensitive portions 

D. All of the above 

Answer = can itself performs the relocation of its address-sensitive portions

268. Banker's algorithm for resource allocation deals with 

A. deadlock prevention 

B. deadlock avoidance 

C. deadlock recovery 

D. mutual exclusion 

Answer = deadlock avoidance

269. A sequence of instructions, in a computer language, to get the desired result, is known as 

A. Algorithm 

B. Decision Table 

C. Program 

D. All of the above 

Answer = Program

270. What does FAT stands for.

A. File attribute type 

B. File allocation table 

C. Format All Tabs settings 

D. File for all type 

Answer = File allocation table

271. Fonts install from 

A. Add from control panel 

B. Font setup file 

C. Fontexe file 

D. All of above 

Answer = All of above

272. Which is not concerned with control panel.

A. Printer 

B. Run application 

C. Font 

D. Keyboard 

Answer = Run application

273. Unicode standard is 

A. Keyboard layout 

B. Software 

C. Font 

D. Character encoding system 

Answer = Character encoding system

274. A ..... is a windows component that is designed to store other components so these can be organized efficiently.

A. Document 

B. Window 

C. Folder 

D. All of above 

Answer = Folder

275. The necessary conditions needed before deadlock can occur.

A. No Mutual Exclusion, Hold and wait, Preemption, Circular Wait 

B. Mutual Exclusion, No Hold and wait, Preemption, Circular Wait 

C. Mutual Exclusion, Hold and wait, No Preemption, Circular Wait 

D. Mutual Exclusion, Hold and wait, Preemption, No Circular Wait 

Answer = Mutual Exclusion, Hold and wait, No Preemption, Circular Wait

276. The OS used to operate the mobile phone is a 

A. Smart card Os 

B. Embedded Os 

C. Multiuser Os 

D. None of above 

Answer = Embedded OS

277. UNIX operating system is a(n). 

A. Time sharing operating system 

B. Multi-user operating system 

C. Multi-tasking operating system 

D. All of the above 

Answer = All of the above

278. The ability of an operating system to control the activities of multiple program at the same time is called 

A. Multitasking 

B. Multiprocessing 

C. Multioperating 

D. Multipaging 

Answer = Multitasking

279. Disk label name can be up to ...... characters 

A. 8. 

B. 9. 

C. 11. 

D. 255. 

Answer = 11

280. The Primary job of the operating system is 

A. Manage Commands 

B. Manage Users 

C. Manage Programs 

D. Manage Resources 

Answer = Manage Resources

281. Which of the following is not an operating system.

A. Windows 2000. 

B. Linux 

C. Mac Os 

D. Notepad 

Answer = Notepad

282. Scandisk analyze and repair damage to which of the following.

A. Physical clusters 

B. FAT. 

C. Lost clusters 

D. All of the above 

Answer = All of the above

283. Find can be used to 

A. Locate a program 

B. Locate a document 

C. Locate a network computer 

D. All of above 

Answer = All of above

284. ...... is a new windows feature that offers a number of methods for searching for a file or folder.

A. Find 

B. Search 

C. Locate 

D. All of the above 

Answer = Find

285. Which is not external command.

A. Doskey 

B. Verify 

C. Print 

D. Find 

Answer = Verify

286. What is the method of handling deadlocks.

A. Use a protocol to ensure that the system will never enter a deadlock state 

B. Allow the system to enter the deadlock state and then recover 

C. Pretend that deadlocks never occur in the system 

D. All of the Above 

Answer = All of the Above

287. To delete a file without allowing it to store in recycle bin 

A. Press Delete key 

B. Press Shift + Delete key 

C. Press Ctrl + Delete key 

D. Press Alt + Delete key 

Answer = Press Shift + Delete key

288. Operating system is a ....... 

A. System software 

B. Application software 

C. Presentation software 

D. Database software 

Answer = System software

289. To display a shortcut menu for an object you use 

A. Click the object 

B. Right click the object 

C. Point the object and press Ctrl+P. 

D. Touch the object on the screen with your finger 

Answer = Right click the object

290. A linker 

A. creates a load module 

B. is not necessary with variable partitions 

C. must be run after the loader 

D. is   not   needed   with   a   good compiler 

Answer = creates a load module

291. Uniform Symbols Table 

A. contains all constants in the program 

B. a permanent table of decision rules in the form of patterns for matching with the uniform symbol table to discover syntactic structure 

C. consists of a full or partial list of the token's as they appear in the program Created by Lexical analysis and used for syntax analysis and interpretation 

D. a permanent table which lists all key words and special symbols of the language in symbolic form 

Answer = consists of a full or partial list of the token's as they appear in the program Created by Lexical analysis and used for syntax analysis and interpretation

292. In which of the storage placement strategies a program is placed in the smallest available hole in the main memory.

A. best fit 

B. first fit 

C. worst fit 

D. buddy 

Answer = best fit

293. In which addressing mode, the effective address of the operand is generated by adding a constant value to the contents of register.

A. absolute mode 

B. indirect mode 

C. immediate mode 

D. index mode 

Answer = index mode

294. The higher versions of the operating systems are so written that programs designed for earlier versions can still be run What is it called.

A. Upgradability 

B. Upward mobility 

C. Universality 

D. Upward compatibility 

Answer = Upward compatibility

295. Which of the following is not a multitasking operating system.

A. Windows 

B. Linux 

C. Win NT. 

D. DOs 

Answer = DOS

296. You should choose Sleep option when 

A. The computer is tired after working for the whole day 

B. You are leaving for a very short time and want to resume you work shortly 

C. When computer gets hanged frequently Let it sleep for some time 

D. You finish working and going to bed 

Answer = You are leaving for a very short time and want to resume you work shortly

297. The ..... displays the name of every computer user on the computer 

A. Wish list screen 

B. Command screen 

C. Welcome screen 

D. None of the above 

Answer = Welcome screen

298. The category of software most appropriate for controlling the design and layout of complex document like newsletters and brochure is:. 

A. Word processing 

B. Computer aided design 

C. Web page authoring 

D. Desktop publishing 

Answer = Word processing

299. Which one is not a system tool.

A. Backup 

B. Disk defragment 

C. Virus scanning 

D. All of the above 

Answer = Virus scanning

300. In analyzing the compilation of PL/I program, the description  " creation of more optimal matrix "  is associated with 

A. Assembly and output 

B. Code generation 

C. Syntax analysis 

D. Machine independent optimization 

Answer = Machine independent optimization

301. In memory systems, boundary registers 

A. are used for temporary program variable storage 

B. are only necessary with fixed partitions 

C. track page boundaries 

D. track the beginning and ending of programs 

Answer = track the beginning and ending of programs

302. Which of the following is true for machine language. 

A. Repeated execution of program segments 

B. Depicting flow of data in a system 

C. A sequence of instructions which, when followed properly, solves a problem 

D. the language which communicates with the computer using only the binary digits 1 and 0.. 

Answer = the language which communicates with the computer using only the binary digits 1 and 0.

303. Which of the following is not applications software.

A. Word processing 

B. Spreadsheet 

C. UNIX. 

D. Desktop publishing 

Answer = UNIX

304. Scissoring enables 

A. a part of data to be displayed 

B. entire data to be displayed 

C. full data display on full area of screen 

D. no data to be displayed 

Answer = a part of data to be displayed

305. Whenever you move a directory from one location to another 

A. All files inside the directory are moved 

B. All the subdirectory inside that directory are moved 

C. The directory is moved the source file is not moved 

D. Both A and B. 

Answer = Both A and B

306. The Basic Input Output System (BIOS) resides in 

A. RAM. 

B. ROM. 

C. The CPU. 

D. Memory Cache 

Answer = ROM

307. Which of the following does not occur during the power-on-self-test (POST).

A. The scan disk utility begins to run 

B. The video card and video memory are tested 

C. The BIOS identification process occurs 

D. Memory chip are checked to ensure that they are working properly 

Answer = The scan disk utility begins to run

308. The maximum size of a write file is limited to only 

A. Name of the file 

B. Extension of the file 

C. The amount of memory in your computer 

D. All of above 

Answer = The amount of memory in your computer

309. Which of the following is drop down list.

A. List 

B. Combo box 

C. Text area 

D. None 

Answer = Combo box

310. The operating feature that integrates the file created in different application into WebPages 

A. Web integration 

B. Internet integration 

C. Intranet integration 

D. Hypertext integration 

Answer = Web integration

311. Which icon would you access in the printer window to install a printer drive.

A. Add printer wizard 

B. Setup 

C. Install 

D. None of above 

Answer = Add printer wizard

312. Which of the following is the allocation method of a disk space.

A. Contiguous allocation 

B. Linked allocation 

C. Indexed allocation 

D. All of the Above 

Answer = All of the Above

313. You can set the width taskbar area and different components in it 

A. By right click and set width menu 

B. If the taskbar is not yet locked 

C. If the applications are not opened 

D. If other toolbars are not enabled 

Answer = If the taskbar is not yet locked

314. When you cut or copy the text or picture, it stores temporarily in the 

A. File 

B. Clipboard 

C. Icon 

D. All of above 

Answer = Clipboard

315. Which of the following does not support more than one program at a time.

A. DOs 

B. Linux 

C. Windows 

D. Unix 

Answer = DOS

316. Which of the following is not an operating system.

A. DOs 

B. Linux 

C. Windows 

D. Oracle 

Answer = Oracle

317. Linux is a(n) ....... operating system 

A. Open source 

B. Microsoft 

C. Windows 

D. Mac 

Answer = Open source

318. Which operating system can you give smallest file name.

A. Ps/2. 

B. Dos 

C. Windows 

D. Windows NT. 

Answer = Dos

319. Which one is not operating system.

A. P11. 

B. OS/2. 

C. Windows 

D. Unix 

Answer = P11

320. Copying a process from memory to disk to allow space for other processes is Called 

A. Swapping 

B. Deadlock 

C. Demand Paging 

D. Page Fault 

Answer = Swapping

321. Any files deleted in Windows goes into 

A. Trash can 

B. Recycle bin 

C. Deleted Files 

D. None of above 

Answer = Recycle bin

322. Which of the following is a disk compression tool.

A. Drive space 

B. Scan disk 

C. Defragmenter 

D. None of the above 

Answer = Drive space

323. What does Belady's Anomaly related to.

A. Page Replacement Algorithm 

B. Memory Management Algorithm 

C. Deadlock Prevention Algorithm 

D. Disk Scheduling Algorithm 

Answer = Page Replacement Algorithm

324. A ..... allows you to write on screen with a digital pen and convert that writing into characters that the PC can process 

A. Monitor Rs 

B. Tablet PC. 

C. Database manager 

D. Media Center 

Answer = Tablet PC

325. For how many processes which are sharing common data, the Dekker's algorithm implements mutual exclusion.

A. 1. 

B. 2. 

C. 3. 

D. 4. 

Answer = 2

326. The file structure that redefines its first record at a base of zero uses the term:. 

A. relative organization 

B. key fielding 

C. dynamic reallocation 

D. hashing 

Answer = relative organization

327. What is the name given to all the programs inside the computer with makes it usable.

A. Application software 

B. System software 

C. Firm ware 

D. Shareware 

Answer = System software

328. Semaphores 

A. synchronize critical resources to prevent deadlock 

B. synchronize critical resources to prevent contention 

C. are used to do I/O. 

D. are used for memory management 

Answer = synchronize critical resources to prevent deadlock

329. The advantage(s) of incorporating the macro processor into pass 1 is(are):. 

A. many functions do not have to be implemented twice. 

B. Functions are combined and it is not necessary to create intermediate files as output from the macros processor and input to the assembler. 

C. more flexibility is available to the programmer in that he may use all the features of the assembler in conjunction with macros 

D. all of the above 

Answer = all of the above

330. The memory which allocates space for DOS and application is called 

A. Expanded memory 

B. Cache memory 

C. Virtual memory 

D. Conventional memory 

Answer = Conventional memory

331. The operating system creates _____ from the physical computer 

A. Virtual space 

B. Virtual computers 

C. Virtual device 

D. None 

Answer = Virtual computers

332. Which menu bar selection would you access to open file.

A. Option 

B. Help 

C. View 

D. None of above 

Answer = None of above

333. Which mode loads minimal set of drivers when starting Windows.

A. Safe Mode 

B. Normal Mode 

C. VGA Mode 

D. Network Support Mode 

Answer = Safe Mode

334. Which of the following are loaded in safe mode.

A. Keyboard driver 

B. Mouse driver 

C. VGA drive 

D. All of above 

Answer = All of above

335. The box on ....... that allows you to choose where to go and is located below the standard toolbar 

A. System menu 

B. Address bar 

C. Menu bar 

D. None of these 

Answer = Address bar

336. A ...... is a set of computer instructions that carry out a task on the computer 

A. Program 

B. Database 

C. Memory files 

D. None of the above 

Answer = Program

337. A real time operating system is most likely to be used for which of the following task.

A. Controlling access to a shared printer in a network 

B. Ensuring that system clock works correctly on server 

C. Managing the access to system files in a laptop computers 

D. Controlling the fuel injection system of an automobile engines 

Answer = Controlling the fuel injection system of an automobile engines

338. An operating system is a program or a group of programs that 

A. Helps in checking the spelling of Word 

B. Maintain the relationship in Database 

C. Manages the resources of the Computer 

D. Performs the calculations of cells in Excel 

Answer = Manages the resources of the Computer

339. What is the function of an operating system.

A. Manages computer’s resources very efficiently 

B. Takes care of scheduling jobs for execution 

C. Manages the flow of data and instructions 

D. All of the above 

Answer = All of the above

340. Underlined text, such as text and folder names is referred to as 

A. Hyperlink 

B. Menu 

C. Source drive 

D. None of these 

Answer = Hyperlink

341. Which of the following is suitable after you install new drivers.

A. Shut Down 

B. Restart 

C. Sleep 

D. Hibernate 

Answer = Restart

342. Windows displays various options to shutdown Which is suitable at the end of day.

A. Shut Down 

B. Restart 

C. Sleep 

D. Hibernate 

Answer = Shut Down

343. Which of the following shutdown method is often called Warm Boot.

A. Shut Down 

B. Restart 

C. Sleep 

D. Hibernate 

Answer = Restart

344. ______ is most often done after fixing a problem, adding a new program or making configuration change 

A. Shut Down 

B. Restart 

C. Sleep 

D. Hibernate 

Answer = Restart

345. Multi programming systems ....... 

A. Are easier to develop than single programming system 

B. Execute each job faster 

C. Execute more jobs in the same time period 

D. Are used only by large mainframe computer 

Answer = Execute more jobs in the same time period

346. Netscape navigator is a 

A. Browser 

B. Compose 

C. Editor 

D. None of these 

Answer = Browser

347. To print documents from Windows 

A. File >> Print 

B. Drag the document icon over your printers icon 

C. Edit print 

D. Both A and B. 

Answer = Both A and B

348. Which of the following appear in Windows menu bar.

A. Help 

B. File 

C. Edit 

D. All of above 

Answer = All of above

349. The operating system allows the user to organize the computer's contents in a hierarchical structure of directories that include all of the following except:. 

A. Files 

B. Folders 

C. Drives 

D. System 

Answer = System

350. The CPU, after receiving an interrupt from an I/O device 

A. halts for a predetermined time 

B. hands over control of address bus and data bus to the interrupting device 

C. branches off to the interrupt service routine immediately 

D. branches off to the interrupt service routine after completion of the current instruction 

Answer = branches off to the interrupt service routine after completion of the current instruction

351. Seeks analysis 

A. is used for analyzing paging problems 

B. is used for analyzing device busy problems 

C. is used for analyzing control-unit busy problems 

D. is only shown on real-time displays 

Answer = is used for analyzing device busy problems

352. Which is a permanent database in the general model of the compiler.

A. Literal Table 

B. Identifier Table 

C. Terminal Table 

D. Source code 

Answer = Terminal Table

353. What is the name of the technique in which the operating system of a computer executes several programs concurrently by switching back and forth between them.

A. Partitioning 

B. Multitasking 

C. Windowing 

D. Paging 

Answer = Multitasking

354. Operating system 

A. links a program with the subroutines it references 

B. provides a layered, user-friendly interface 

C. enables the programmer to draw a flowchart 

D. all of the above 

Answer = provides a layered, user-friendly interface

355. Which of the following is an example of a real time operating system.

A. Lynx 

B. MS DOs 

C. Windows XP. 

D. Process Control 

Answer = Process Control

356. Which of the following operating system does not implement the multitasking truly.

A. Windows 98. 

B. Windows NT. 

C. Windows XP. 

D. MS DOs 

Answer = MS DOS

357. Which of the following windows version support 64 bit processor.

A. Windows 98. 

B. Windows 2000. 

C. Windows XP. 

D. Windows 95. 

Answer = Windows XP

358. What program runs first after computer is booted and loading GUI.

A. Desktop Manager 

B. File Manager 

C. Windows Explorer 

D. Authentication 

Answer = Authentication

359. Which of the following operating system do you choose to implement a client server network.

A. MS DOs 

B. Windows 

C. Windows 98. 

D. Windows 2000. 

Answer = Windows 2000

360. What is the initial value of the semaphore to allow only one of the many processes to enter their critical section.

A. 8. 

B. 1. 

C. 16. 

D. 0. 

Answer = 1

361. Four necessary conditions for deadlock to exist are: mutual exclusion, no-preemption, circular wait and 

A. hold and wait 

B. deadlock avoidance 

C. race around condition 

D. buffer overflow 

Answer = hold and wait

362. If you do not know which version of MS-DOS you are working with, which command will you use after having booted your operating system.

A. FORMAT command 

B. DIR command 

C. VER command 

D. DISK command 

Answer = VER command

363. A partitioned data set is most used for 

A. a program or source library 

B. storing program data 

C. storing backup information 

D. storing ISAM files 

Answer = a program or source library

364. Page-map table is 

A. A data file 

B. A directory 

C. Used for address translation 

D. All of the above 

Answer = Used for address translation

365. Which operating system does not support long file names.

A. OS/2. 

B. Windows 98. 

C. DOS 6.2. 

D. Windows NT. 

Answer = DOS 6.2

366. Which operating system uses short file names.

A. Windows 

B. Unix 

C. DOs 

D. All of above 

Answer = DOS

367. Bringing a page into memory only when it is needed, this mechanism is called 

A. Deadlock 

B. Page Fault 

C. Dormant Paging 

D. Demand Paging 

Answer = Demand Paging

368. It is the default folder for many Windows Applications to save your file 

A. My Document 

B. My Pictures 

C. Documents and Settings 

D. My Computer 

Answer = My Document

369. The component of Windows that lets you to transfer contents from one document to another 

A. Briefcase 

B. Clipboard 

C. Document 

D. Boot 

Answer = Clipboard

370. Which of the following is default mode for Windows to start.

A. Command Prompt 

B. Safe Mode 

C. Normal Mode 

D. None of above 

Answer = Normal Mode

371. The file system  " NTFS "  stands for 

A. New Type File System 

B. Never Terminated File System 

C. New Technology File System 

D. Non Terminated File System 

Answer = New Technology File System

372. Which one of the following is not the function of Operating System.

A. Resource Management 

B. File Management 

C. Networking 

D. Processor Management 

Answer = Networking

373. How do you connect internet in your system.

A. My computer >> dialup networking 

B. Control panel >> modem 

C. Network neighborhood 

D. None of above 

Answer = My computer >> dialup networking

374. The following applications may appear on system tray except 

A. System Clock 

B. Volume Control 

C. Network Connection 

D. MS Office Suite 

Answer = MS Office Suite

375. ...... controls the way in which the computer system functions and provides a means by which users can interact with the computer 

A. The platform 

B. The operating system 

C. Application software 

D. The motherboard 

Answer = The operating system

376. Which one of the following is not a layer of operating system.

A. Kernel 

B. Shell 

C. Application program 

D. Critical selection 

Answer = Critical selection

377. Which is not the function of the operating system.

A. Memory management 

B. Disk management 

C. Application management 

D. Virus protection 

Answer = Virus protection

378. The virtual memory is 

A. An extremely large main memory 

B. An extremely large secondary memory 

C. An illusion of extremely large main memory 

D. A type of memory used in super computer 

Answer = An illusion of extremely large main memory

379. Internet Explorer is 

A. an Internet browser 

B. provided by Windows Os 

C. an access point for Word Wide Web 

D. All of above 

Answer = All of above

380. What do you mean by Memory Compaction.

A. Combine multiple equal memory holes into one big hole 

B. Combine multiple small memory holes into one big hole 

C. Divide big memory hole into small holes 

D. Divide memory hole by 2. 

Answer = Combine multiple small memory holes into one big hole

381. Desktop is a 

A. Provides work space 

B. Screen saver 

C. Display program 

D. Working with my document 

Answer = Provides work space

382. Which of the following is not a system tool.

A. Scandisk 

B. Drive space 

C. Disk defragmenter 

D. Doskey 

Answer = Doskey

383. Which of the following statement about directories is false.

A. Directories can exist inside directories 

B. The root directory is always at the highest level 

C. Directories cannot be renamed 

D. Directories can be deleted 

Answer = Directories cannot be renamed

384. The program that is responsible for loading the operating system into RAM is called 

A. BIOs 

B. Bootstrap program 

C. Device driver 

D. Supervisor program 

Answer = Bootstrap program

385. Which of the following is a type of systems software used on microcomputers.

A. MS-DOs 

B. PC-DOs 

C. Unix 

D. All of the above 

Answer = All of the above

386. The working set theory of programming behaviour of processes running within an operating system involves 

A. the collection of pages that a process accesses 

B. disk scheduling mechanisms 

C. coalescing holes in memory 

D. assigning the CPU to processes 

Answer = the collection of pages that a process accesses

387. Operating system is 

A. A collection of hardware components 

B. A collection of input-output devices 

C. A collection of software routines 

D. All of the above 

Answer = A collection of software routines

388. A file organization component of a VSAM file is:. 

A. relative record data set 

B. keyed sequential data set 

C. entry sequential data set 

D. all of the above 

Answer = all of the above

389. What is the name given to the software which can be legally compiled and often used for free.

A. Shareware program 

B. Public domain program 

C. Firmware program 

D. Mindware 

Answer = Public domain program

390. Which of the following key is used to move the pointer from one pane to next pane.

A. F3. 

B. F4. 

C. F5. 

D. F6. 

Answer = F6

391. In a folder, which of the following key is used to rename the file or folder 

A. F3. 

B. F4. 

C. F2. 

D. F7. 

Answer = F2

392. A character that represents one or more unknown character is 

A. Wildcard character 

B. All file name 

C. Extensions 

D. None of above 

Answer = Wildcard character

393. Which of the following file format supports in Windows 7.

A. NTFs 

B. BSD. 

C. EXT. 

D. All of the above 

Answer = NTFS

394. Anything you cut or copy on to the clipboard remains there until you 

A. Change it 

B. Clear 

C. Exit windows 

D. All of the above 

Answer = Exit windows

395. Which of the following Operating systems is better for implementing a Client-Server network 

A. MS DOs 

B. Windows 95. 

C. Windows 98. 

D. Windows 2000. 

Answer = Windows 2000

396. My Computer was introduced from 

A. Windows 3.1. 

B. Windows 3.11. 

C. Windows 95. 

D. Windows 98. 

Answer = Windows 95

397. Which of the following Windows do not have Start button 

A. Windows Vista 

B. Windows 7. 

C. Windows 8. 

D. None of above 

Answer = Windows 8

398. Which is the latest version of MS Windows.

A. Windows 2007. 

B. Windows 8.1. 

C. Windows 2008. 

D. Windows 10. 

Answer = Windows 10

399. Which operating system doesn't support networking between computers.

A. Windows 3.1. 

B. Windows 95. 

C. Windows 2000. 

D. Windows NT. 

Answer = Windows 3.1

400. Which of the following is not a characteristic of a daisy chaining priority control scheme.

A. priority is programmable 

B. it is relatively easy to add more devices to the chain 

C. the failure of one device may affect other devices on the chain 

D. the number of control lines is independent of the number of devices on the chain 

Answer = priority is programmable

401. Assembler is 

A. a program that places programs into memory and prepares them for execution. 

B. a program that automate the translation of assembly language into machine language. 

C. a program that accepts a program written in a high level language and produces an object program. 

D. is a program that appears to execute a source program as if it were machine language. 

Answer = a program that automate the translation of assembly language into machine language

402. Indicate which, of the following, in not true about an interpreter 

A. Interpreter generates an object program from the source program 

B. Interpreter is a kind of translator 

C. Interpreter analyses each source statement every time it is to be executed 

D. All of the above 

Answer = Interpreter generates an object program from the source program

403. Object modules generated by assemblers that contain unresolved external references are resolved for two or more object modules by a/an 

A. operating system 

B. loader 

C. linker 

D. compiler 

Answer = linker

404. The advantage of a command processor running only built-in commands is:. 

A. flexibility to the users in running lists of commands by simply collecting them in named batch command files 

B. the command set being common across different hardware configurations 

C. users can create system programs and run them as commands 

D. the processing is much faster than would other-wise be the case when user defined commands are used 

Answer = the command set being common across different hardware configurations

405. Which of the following is used to display the content of a certain drive or folder.

A. Click the drive or folder while holding down the Alt key 

B. Triple click the drive or folder 

C. Right click the drive or folder 

D. Double click the drive or folder 

Answer = Double click the drive or folder

406. Which of the following file menu option saves document to disk.

A. Save 

B. Create 

C. Rename 

D. All of above 

Answer = Save

407. Booting means 

A. Restarting computer 

B. Installing program 

C. Removing errors 

D. Switch off 

Answer = Restarting computer

408. When you rename a file five times then the number of file in the disk is 

A. 1. 

B. 2. 

C. 3. 

D. 5. 

Answer = 1

409. When you open my computer on desktop you see the information of 

A. Hard disk 

B. CD. 

C. Removable disk 

D. All of the above 

Answer = All of the above

410. Which of the following operating system reads and reacts in actual time.

A. Quick Response System 

B. Real Time System 

C. Time Sharing System 

D. Batch Processing System 

Answer = Real Time System

411. All of the following are TRUE regarding virtual memory EXCEPT. 

A. Any amount of RAM can be allocated to virtual memory 

B. The setting for the amount of hard disk drive space to allocate virtual memory can be manually change 

C. This temporary storage is called the swap file or page file 

D. Virtual memory is the physical space o the hard drive 

Answer = Any amount of RAM can be allocated to virtual memory

412. The essential difference between an operating system like Linux and one like Windows is that 

A. Windows can run with an Intel processor, whereas Linux cannot 

B. Linux is a proprietary whereas Windows is not 

C. There are multiple versions of Linux, but only one version of Windows 

D. Any programmer can modify Linux code which is not permitted with Windows 

Answer = Any programmer can modify Linux code which is not permitted with Windows

413. What is dispatch latency.

A. The time taken by the dispatcher to stop one process and start another 

B. The time taken by the processor to write a file into disk 

C. The whole time taken by all processor 

D. None of Above 

Answer = The time taken by the dispatcher to stop one process and start another

414. A page fault occurs when 

A. the Deadlock happens 

B. the Segmentation starts 

C. the page is found in the memory 

D. the page is not found in the memory 

Answer = the page is not found in the memory

415. A tiny dot of light on the monitor is called 

A. Silicon chip 

B. Optical illusion 

C. Icon 

D. Pixel 

Answer = Pixel

416. Who is called a supervisor of computer activity.

A. Memory 

B. Operating System 

C. I / O Devices 

D. Control Unit 

Answer = Operating System

417. Operating System manages 

A. Memory 

B. Processor 

C. I / O devices 

D. All of the above 

Answer = All of the above

418. To send email, we use 

A. MS Excel 

B. Outlook Explorer 

C. HTML. 

D. Netscape Navigator 

Answer = Outlook Explorer

419. Which of the following concept is best to preventing page faults.

A. Paging 

B. The working set 

C. Hit ratios 

D. Address location resolution 

Answer = The working set

420. A co-processor 

A. Is relatively easy to support in software 

B. Causes all processor to function equally 

C. Works with any application 

D. Is quite common in modern computer 

Answer = Is relatively easy to support in software

421. A Microsoft Windows is  a(n). 

A. Operating system 

B. Graphic program 

C. Word Processing 

D. Database program 

Answer = Operating system

422. Which of the following is program group.

A. Accessories 

B. Paint 

C. Word 

D. All of above 

Answer = Accessories

423. Which is not application software.

A. Windows NT. 

B. Page Maker 

C. WinWord XP. 

D. Photoshop 

Answer = Windows NT

424. The ...... program compresses large files into a smaller file 

A. WinZip 

B. WinShrink 

C. WinStyle 

D. None of above 

Answer = WinZip

425. The SJF algorithm executes first the job 

A. that last entered the queue 

B. that first entered the queue 

C. that has been in the queue the longest 

D. with the least processor needs 

Answer = with the least processor needs

426. In which of the storage placement strategies a program is placed in the largest available hole in the main memory.

A. best fit 

B. first fit 

C. worst fit 

D. buddy 

Answer = worst fit

427. Which of the following is a block device 

A. mouse 

B. printer 

C. terminals 

D. disk 

Answer = disk

428. The problem of thrashing is affected significantly by:. 

A. program structure 

B. program size 

C. primary-storage size 

D. all of the above 

Answer = program structure

429. Which of the following software types is used to simplify using systems software.

A. spreadsheet 

B. operating environment 

C. timesharing 

D. multitasking 

Answer = timesharing

430. In which addressing mode, the address of the location of the operand is given explicitly as a part of the instruction. 

A. absolute mode 

B. immediate mode 

C. index mode 

D. modulus mode 

Answer = absolute mode

431. Under virtual storage,. 

A. a single program is processed by two or more CPUs 

B. two or more programs are stored concurrently in primary storage 

C. only the active pages of a program are stored in primary storage 

D. interprogram interference may occur 

Answer = only the active pages of a program are stored in primary storage

432. A base register table 

A. allows the programmer to write base registers and displacements explicitly in the source program. 

B. is used to remember which of the general-purpose registers are currently available as base registers, and what base addresses they contain. 

C. allows multiple programs to reside in separate areas of core at the same time. 

D. is a term that refers to the control programs of an operating system. 

Answer = is used to remember which of the general-purpose registers are currently available as base registers, and what base addresses they contain

433. File record length 

A. should always be fixed 

B. Should always be variable 

C. depends upon the size of the file 

D. should be chosen to match the data characteristics 

Answer = should be chosen to match the data characteristics

434. A relationship between processes such that each has some part (critical section) which must not be executed while the critical section of another is being executed, is known as 

A. semaphore 

B. mutual exclusion 

C. multiprogramming 

D. multitasking 

Answer = mutual exclusion

435. What is the function of folder.

A. Save files 

B. Delete files 

C. Move files 

D. All of the above 

Answer = All of the above

436. Which button might you find in a windows title bar.

A. Close button 

B. Maximize button 

C. Minimize button 

D. All of the above 

Answer = All of the above

437. Press the ..... button to have the window fill the entire screen 

A. Close 

B. Maximize 

C. Minimize 

D. None of the above 

Answer = Maximize

438. Which windows features can be accessed from the start menu.

A. Help 

B. Windows Explorer 

C. Microsoft Network 

D. All of above 

Answer = All of above

439. ....... are list of commands that appear on the screen 

A. GUIs 

B. Icons 

C. Menus 

D. Windows 

Answer = Menus

440. Which, of the following, is true for testing and debugging.

A. Testing checks for logical errors in the programs, while debugging is a process of correcting those errors in the program 

B. Testing detects the syntax errors in the program while debugging corrects those errors in the program 

C. Testing and debugging indicate the same thing 

D. All of the above 

Answer = Testing checks for logical errors in the programs, while debugging is a process of correcting those errors in the program

441. Information in a memory that is no longer valid or wanted is known as 

A. non-volatile 

B. volatile 

C. surplus 

D. garbage 

Answer = garbage

442. Which of the following filename extension suggests that the file is a backup copy of another file.

A. .txt 

B. .com 

C. .bas 

D. .bak 

Answer = .bak

443. Relocation bits used by relocating loader are specified (generated) by 

A. Relocating loader itself 

B. Linker 

C. Assembler or translator 

D. Macro processor 

Answer = Linker

444. Which of the following statements is false.

A. a process scheduling algorithm is preemptive if the CPU can be forcibly removed from a process 

B. time sharing systems generally use preemptive CPU scheduling 

C. response time are more predictable in preemptive systems than in non preemptive systems 

D. real time systems generally use non-preemptive CPU scheduling 

Answer = real time systems generally use non-preemptive CPU scheduling

445. Which of the following is text browser.

A. Lynx 

B. Hot Java 

C. c Netscape 

D. Internet Explorer 

Answer = Lynx

446. Which of the following is default location of saving and opening file.

A. Desktop 

B. My computer 

C. My documents 

D. All of above 

Answer = My documents

447. By default we can save the file in 

A. Desktop 

B. Recycle bin 

C. My document 

D. My computer 

Answer = My document

448. ____ is the operating systems File and folder Manager 

A. Windows Explorer 

B. Windows Control Panel 

C. My Computer 

D. My Documents 

Answer = Windows Explorer

449. It is used to explorer the contents of computer, drives as well as manage files 

A. Recent Places 

B. My Document 

C. My Computer 

D. My Network Place 

Answer = My Document

450. Save operation means 

A. Put data into processor 

B. Put data into internal memory 

C. Put data into secondary storage 

D. Put data into monitor 

Answer = Put data into secondary storage

451. CAD software is most likely to be used by 

A. Web designer 

B. Engineers 

C. Project Manager 

D. Magazine Editor 

Answer = Engineers

452. A spooler is a 

A. Location in memory that maintains the contents of documents until it prints out 

B. Queue of print job that are waiting to print 

C. Program that coordinates the print job that are waiting to process 

D. Message sent from the printer to the operating system when a print job is completed 

Answer = Program that coordinates the print job that are waiting to process

453. The problem with .... file is that they slow your computer's operation 

A. Fragmented 

B. Formatted 

C. Program 

D. All of above 

Answer = Fragmented

454. User action such as keystroke or mouse click are referred to as 

A. Interrupt 

B. Tasks 

C. Processes 

D. Event 

Answer = Event

455. Which table is a permanent database that has an entry for each terminal symbol. 

A. Terminal table 

B. Literal table 

C. Identifier table 

D. Reductions 

Answer = Terminal table

456. The function(s) of the Syntax phase is(are). 

A. to recognize the major constructs of the language and to call the appropriate action routines that will generate the intermediate form or matrix for these constructs 

B. to build a literal table and an identifier table 

C. to build a uniform symbol table 

D. to parse the source program into the basic elements or tokens of the language. 

Answer = to recognize the major constructs of the language and to call the appropriate action routines that will generate the intermediate form or matrix for these constructs

457. Swapping 

A. works best with many small partitions 

B. allows many programs to use memory simultaneously 

C. allows each program in turn to use the memory 

D. does not work with overlaying 

Answer = allows each program in turn to use the memory

458. A disk scheduling algorithm in an operating system causes the disk arm to move back and forth across the disk surface in order to service all rets in its path This is a 

A. First come first served 

B. Shortest Seek Time First (SSTE). 

C. Scan 

D. FIFO. 

Answer = Scan

459. A translator is best described as 

A. an application software 

B. a system software 

C. a hardware component 

D. all of the above 

Answer = a system software