This is the second set of Operating System MCQs, which is designed for all competitive exams. Click Here for Set-1
1. Which command is used to undelete a bunch of files with the extension .doc that you have just deleted?
a. Undelete
b. Undelete/all
c. Undelete *.doc
d. All of the above
2. Which command is used to display the contents of a text file in DOS?
a. Copy con
b. Copy
c. Type
d. Dir
3. In Windows, the start button is used to…
a. Run applications
b. Device setting
c. Turn off the system
d. All of the above
4. Which of the following is an essential file of an MS-DOS boot disk?
a. COMMAND.COM
b. START.COM
c. TREE.COM
d. VER.COM
5. Which one is true for unconditional disk formatting?
a. Destroys every byte of data on a disk by overwriting it with blank spaces
b. Do not check/scan the surface after formatting
c. Transfer system files after formatting
d. All of the above
6. 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
7. What is the function of a radio button?
a. To select multiple options
b. To select a single option
c. To select all options
d. All of the above
8. The Banker’s algorithm is used…
a. to rectify a deadlock
b. to detect deadlock
c. to prevent deadlock
d. to solve deadlock
9. 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
10. What is the switch that is used to make sure that the copy command copies files correctly?
a. /a
b. /c
c. /s
d. /v
11. You can use the print management window….
a. To check the status of files in the print queue
b. To cancel the print job
c. To interrupt printing
d. All of the above
12. Which of the following operating systems reads and reacts in actual time?
a. Quick Response System
b. Real-Time System
c. Time Sharing System
d. Batch Processing System
13. 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 changed
c. This temporary storage is called the swap file or page file
d. Virtual memory is the physical space of the hard drive
14. 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 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
15. 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 to the disk
c. The whole time taken by all processors
d. None of the Above
16. 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
17. Whenever you move a directory from one location to another…
a. All files inside the directory are moved
b. All the subdirectories inside that directory are moved
c. The directory is moved, but the source file is not moved
d. Both a and b
18. The Basic Input Output System (BIOS) resides in…
a. RAM
b. ROM
c. The CPU
d. Memory Cache
19. Which of the following does not occur during the power-on-self-test (POST)?
a. The scandisk utility begins to run
b. The video card and video memory are tested
c. The BIOS identification process occurs
d. Memory chips are checked to ensure that they are working properly
20. 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 the above
21. Which of the following is a drop-down list?
a. List
b. Combo box
c. Text area
d. None
22. Recently deleted files are stored in…
a. Recycle bin
b. Desktop
c. Taskbar
d. My computer
23. Which among the following are the best tools for fixing errors on disks?
a. Fdisk
b. Scandisk
c. Chkdsk
d. Fixdsk
24. A small part of the taskbar that has icons of background running applications is…
a. Start button
b. Quick launch
c. Taskbar
d. System tray
25. 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 the above
26. 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
27. The date and time are displayed on…
a. Taskbar
b. Status bar
c. System tray
d. Launch pad
28. …. runs on computer hardware and serves as a platform for other systems to run on.
a. Operating system
b. Application system
c. System software
d. All of the above
29. What is the maximum length allowed for the primary name of a computer file under DOS?
a. 8
b. 12
c. 3
d. None of the above
30. Which command is used to set a name to a disk in DOS?
a. VOLUME
b. VOL
c. LABEL
d. DISKLABEL
31. 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
32. The ….contains commands associated with the My Computer window.
a. Standard menu
b. Start menu
c. System menu
d. None of the above
33. …. 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
34. Which statement is valid about the “TIME” command?
a. The time command is used to display and allow changes to the system time
b. Time format can be changed by changing in country setting in the config.sys file
c. MS DOS displays the time in 12-hour or 24-hour format
d. All of the above
35. When you start up the computer, the boot-up storage at which the BIOS version, manufacturer, and data are displayed on the monitor is called
a. Bootstrap
b. Power on self test (POST)
c. System configuration
d. Kernel loading
36. The operating system is the most common type of …. Software.
a. Communication
b. Application
c. System
d. Word processing software
37. Which of the following is/are external commands?
a. Edit
b. Label
c. Sys
d. All of the above
38. Which is not an external command?
a. Edit
b. XCOPY
c. Sys
d. None of the above
39. 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 the monitor
d. Cut off the power supply
40. What is Dr. Watson?
a. IT Expert
b. Diagnosis tool
c. Surgeon
d. None
41. The command allows you to create a logical drive.
a. Fdisk
b. Path
c. Subst
d. Batch
42. The command used to create a logical drive for a specific location of a disk…
a. Fdisk
b. Format
c. Subst
d. All of the above
43. You can move a window to a different position on your screen by dragging it.
a. Move the handle
b. Tail
c. Status bar
d. Title bar
44. A bar that informs you of 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. Toolbar
c. Status bar
d. Taskbar
45. Which components appear in the initial Windows start-up display?
a. Dialog box
b. Taskbar
c. Start menu
d. All of the above
46. Taskbar is used for…
a. Navigation program
b. Switching between programs
c. Start a program
d. All of the above
47. To install the new font…
a. Start -> setting -> control panel -> font
b. Start -> Settings -> Control Panel -> Fonts -> install new font
c. Start -> Control Panel -> Fonts -> Install New Font
d. Start -> setting -> font
48. When a peripheral device needs immediate attention from the operating system, it generates a(n)…
a. Interrupt
b. Spool
c. Stack
d. Page file
49. Underlined text, such as text and folder names, is referred to as…
a. Hyperlink
b. Menu
c. Source drive
d. None of these
50. Which of the following is suitable after you install new drivers?
a. Shut Down
b. Restart
c. Sleep
d. Hibernate