1000+ Operating System Multiple Choice Question Answer [Solved]

1. __________ deals with when a modified page should be written out to secondary memory.
A. Cleaning policy
B. Fetch policy
C. Frame locking
D. None
Answer : A

2. _______________refers to a strategy where whenever a resource is requested, it is only granted if it cannot result in deadlock.
A. Deadlock Prevention
B. Livelock
C. Deadlock avoidance
D. none of these
Answer : C

3. In the case of____________ , changes to an open file are only locally visible.
A. session semantics
B. immutable files
C. atomic transactions
D. None of the above.
Answer : A

4. Having data belonging to two independent processes in the same page is called____________.
A. Buffering
B. Blocking
C. Message-passing
D. False sharing
Answer : D

5. IPC stands for _________
A. Integrated parallel communication
B. Intermediate process call
C. Internal program call
D. Inter process communication
Answer : D

6. Initialization of I/O devices is part of the_________.
A. CPU
B. MSDOS
C. UNIX kernel
D. None of the above
Answer : C

7. The Basic Input Output System (BIOS) resides in
A. RAM
B. ROM
C. The CPU
D. Memory Cache
Answer : B

8. To install the new font
A. Start -> setting -> font
B. Start -> control panel -> font -> install new font
C. Start -> setting -> control panel -> font -> install new font
D. Start -> setting -> control panel -> font
Answer : C

9. 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 : B

10. ______________ are popular way to improve application through parallelism.
A. Processes
B. Threads
C. Context switching
D. none of these
Answer : B

11. Bootstrapping is also known as ______
A. cold-hot boot
B. hot boot
C. hot strap
D. cold boot
Answer : D

12. Pick the wrong statement from the following.
A. UNIX systems originally came with a command interpreter called the Bourne Shell.
B. The cat command takes any characters from standard input, and then echoes them to standard output.
C. A pipe is a means of taking the output of one command and directing it as another command.
D. The manual entry is called a man page, even though it is often more than one page long.
Answer : C

13. Most accurate global time is based on oscillations of the ______________
A. Cesium-130 atom
B. Cesium-133 atom
C. Cesium-136 atom
D. Cesium-139 atom
Answer : B

14. ____ runs on a computer hardware and serves as a platform for other system to run on
A. System software
B. Operating system
C. Application system
D. All of above
Answer : B

15. ______________ selects a process from among the ready processes to execute on the CPU.
A. CPU Scheduler
B. Loader
C. Dispatcher
D. Compiler
Answer : A

16. Which one of the following statements is true?
A. The cat command cares which file it receives as input or where the input goes.
B. Relative pathnames begin with something other than the slash character
C. UNIX shells never remember their current working directory (CW.
D. The cat command interprets -X as an option character rather than a pathname.
Answer : B

17. An option commonly takes the form of a _____followed by __________characters.
A. dot, one or more
B. dash, only one
C. dash, one or more
D. dot,only two
Answer : C

18. Taskbar is used for
A. Navigation program
B. Start a program
C. Switching between program
D. All of above
Answer : D

19. The essential difference between an operating system like Linux and one like Windows is that
A. Linux is a proprietary whereas Windows is not
B. Windows can run with an Intel processor, whereas Linux cannot
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 : D

20. You can move a window to a different position on your screen by dragging it by its
A. Tail
B. Move handle
C. Status bar
D. Title bar
Answer : B

21. The controller can access memory in memory cycles which are not used by the particular bank of memory into which the DMA controller is writing data. This approach, called _________
A. interrupting
B. cycle stealing
C. swapping
D. paging
Answer : B

22. 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 : A

23. The usual su command syntax is
A. su-pwd
B. su-pd
C. su - userID
D. Sue- ID
Answer : C

24. Transparent RPC mechanism refers to :
A. Existance of multuple computer visible and a provide a single system image to its users.
B. It runs the program transparently.
C. It is a technique to shift the program to other computer.
D. It is technique in which local procedures and remote procedures are indistinguishable to programmers.
Answer : D

25. _______________occurs when two or more execution flows are able to run simultaneously.
A. Deadlock
B. Concurrency
C. race condition
D. interrupt
Answer : B

26. You can use print manage window
A. To cancel the print job
B. To check status of files in the print queue
C. To interrupt printing
D. All of the above
Answer : D

27. Once text has been cut to the clipboard, you can____hat text into another document
A. Copy
B. Paste
C. Transfer
D. None of the above
Answer : B

28. ______________ occurs when multiple processes or threads read and write data items so that the final result depends on the order of execution of instructions in the multiple processes.
A. Race condition
B. Mutual exclusion
C. Exception
D. Interrupt
Answer : A

29. The ______________ unpacks the call receipt messages from local RPC Runtime and makes a perfect local call to invoke the appropriate procedure in the server.
A. server Stub
B. server
C. client
D. client stub
Answer : A

30. IDL stands for_____________________
A. Integrated Data library
B. Isolated Data Library
C. Interface Data Language
D. Interface Definition Language
Answer : D

31. _______refers to the block size of the DSM system, i.e. to the units of sharing and the unit of data transfer across the network when a network block fault occurs.
A. Granularity
B. Coherence
C. Abstraction
D. Synchronization
Answer : A

32. What is dispatch latency?
A. The time taken by the dispatcher to stop one process and start another
B. The whole time taken by all processor
C. The time taken by the processor to write a file into disk
D. None of Above
Answer : A

33. In ____________ location policies a random node is polled to check its state and the task is transferred if it will not be overloaded; polling is continued until a suitable node is found.
A. Threshold
B. Shortest
C. Bidding
D. Pairing
Answer : A

34. 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 : C

35. In___________, the requesting device or devices assert the signal bus_request.
A. Priority encoded arbitration
B. Distributed arbitration by self-selection
C. Priority arbitration
D. Daisy chain arbitration
Answer : D

36. An unauthorized party inserts counterfeit objects into the system is called_________________
A. interruption
B. interception
C. fabrication
D. modification
Answer : C

37. The find command is different from most UNIX commands in that each of the argument expressions following the beginning path name is considered a _____________
A. action expression
B. Boolean expression.
C. Boolean constant
D. Search qualifiers
Answer : B

38. ______________ refers to the technology in which some space in hard disk is used as an extension of main memory.
A. Cache memory
B. Paging
C. Virtual memory
D. Associative memory
Answer : C

39. The operating system is the most common type of ___ Software
A. System
B. Application
C. Word processing software
D. Communication
Answer : A

40. Ext2 is the standard file system of _______ and uses a block size of_____bytes
A. MS DOS,8K
B. Linux ,1024
C. Linux, 512
D. Unix, 512
Answer : B

41. What do you mean by 0-reliable level in multicast communication?
A. Multiple responses is expected from any receivers.
B. No response is expected from any receivers.
C. Multiple responses is expected from multiple receivers.
D. A multicast message is received by all the members of the group or none.
Answer : B

42. When copying more than one file at a time, you must specify an existing directory as the ___________
A. Source
B. Sub directory
C. Destination.
D. Path name
Answer : C

43. Fsck conducts a check in _____ phases
A. One
B. Two
C. Five
D. Eight
Answer : C

44. Which of the following is drop down list?
A. Combo box
B. List
C. Text area
D. None
Answer : A

45. Because the I/O devices are not synchronized with the CPU, some information must be exchanged between the CPU and the device to ensure that the data is received reliably. This interaction between the CPU and an I/O device is usually referred to as ____________
A. polling
B. arbitration
C. handshaking
D. interrupting
Answer : C

46. The command used to create logical drive for specific location of disk
A. Format
B. Fdisk
C. Subst
D. All of the above
Answer : C

47. A process is _________________
A. program in main memory
B. Program in cache memory
C. program in secondary storage
D. program in execution
Answer : D

48. Which command is used to display the contents of the text file of DOS?
A. Copy
B. Copy con
C. Dir
D. Type
Answer : D

49. Which of the following is not essential to shut down your computer?
A. XCOPY
B. Edit
C. Sys
D. None of the above
Answer : D

50. A SCSI device can transfer up to----------- of information per second.
A. 40 Mbytes
B. 60 Mbytes
C. 40 Gbytes
D. 60 Gbytes
Answer : A