Operating Systems MCQ Questions and Answers
1. What is Dr. Watson?
A. IT Expert
B. Diagnosis tool
C. Surgeon
D. None
2. 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
3. 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
4. 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
5. What do you mean by dialog box?
A. Interactive message box
B. Group of options
C. Set of controls
D. All of the above
6. Dial up connection allows you to
A. Connect ISP
B. Internet
C. Server
D. All of above
7. 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
8. 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
9. 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
10. 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
11. 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.
12. 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
13. 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
14. Which of the following is the part of the operating system?
A. Cell
B. FAT
C. Kernel
D. Disk
15. Directory is similar to ……
A. File
B. Folder
C. Item
D. None of above
16. 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
17. 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
18. Non-modifiable procedures are called
A. serially usable procedures
B. concurrent procedures
C. reentrant procedures
D. topdown procedures
19. 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 ”
20. 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
21. 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
22. 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
23. Driver is
A. Hardware controller
B. Hardware and gain controller
C. Data controller
D. All of above
24. System files allocated at
A. Boot area
B. FAT area
C. Data area
D. Directory
25. ……. transforms one interface into other interface
A. Program
B. Software
C. Data
D. None
26. …….. interface consists of thing like program counter, register, interrupts and terminal
A. Hardware
B. Software
C. Data
D. None
27. ……. show characteristics with both hardware and software
A. Operating system
B. Software
C. Data
D. None
28. 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
29. Small pictures appear on the desktop
A. Windows
B. Icon
C. Button
D. None of above
30. A graphical user interface displays
A. Graphics
B. Text
C. Both of Above
D. None of Above