Operating Systems MCQ Questions and Answers
1. To display system boot menu which of the following key you must press?
A. F4
B. F7
C. F8
D. F5
2. Press __ key while booting to display Advanced Boot Menu
A. F5
B. F6
C. F8
D. Del
3. The ……. is the drive containing the files to be copied
A. Source drive
B. Destination drive
C. USB drive
D. None of the above
4. Which one of the following is not a multitasking operating system?
A. DOS
B. Windows
C. Unix
D. Linux
5. The most recent version of MAC OS is based on the …… operating system
A. Windows
B. Linux
C. Unix
D. CMOS
6. In Windows, start button is used to
A. Run applications
B. Device setting
C. Turn off the system
D. All of above
7. 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
8. Which is not a system tool?
A. Folder
B. Backup
C. Scandisk
D. Format
9. 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
10. To change the volume label
A. Vol
B. Label
C. Scandisk
D. None
11. Which of the following is a disk compression tools?
A. Drive space
B. Defragmenter
C. Scandisk
D. None of the above
12. 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
13. 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
14. 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
15. In which addressing mode the operand is given explicitly in the instruction?
A. absolute mode
B. immediate mode
C. indirect mode
D. index mode
16. 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
17. 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
18. 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
19. Which are the most important features of Microsoft Windows program?
A. Windows
B. Pull-down menus
C. Icons
D. All of the above
20. 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
21. 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
22. 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
23. _________ 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
24. 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
25. 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
26. Running multiple programs at the same time is called:
A. Multitasking
B. Foreground tasking
C. Single tasking
D. Symmetric
27. 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
28. 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
29. 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
30. 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