1000+ Operating System MCQ for SSC GD [Solved]

1. A standard UNIX system includes a set of ___________ and a set of ___________.
A. Commands ,files
B. Libraries, Applications
C. Libraries, files
D. Files, Applications
Answer : B

2. In MS-DOS, the interfaces and levels of functionality are _______________
A. not well separated.
B. well separated
C. independent
D. dependent
Answer : A

3. 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. System configuration
C. Power on self test (POST)
D. Kernel loading
Answer : C

4. The time taken by the Dispatcher to stop one process and start another running is known as _________________.
A. Turnaround time
B. Dispatch Latency
C. Access time
D. Response time
Answer : B

5. A sequence of instructions telling the computer what to do is called a_____________
A. program
B. language
C. translator
D. package
Answer : A

6. 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

7. _____________ manage the name spaces and binds an object to its location.
A. Name Server
B. Name agent
C. Context
D. Name resolution
Answer : A

8. The algorithm should be scalable i.e. _____________.
A. The system should not enter a state in which nodes spend all their time migrating processes or exchanging control messages without doing any useful work.
B. The system should be able to handle small and large networked systems.
C. The algorithm should not be affected by the crash of one or more nodes in the system.
D. The process assignment decisions should be based on the current load of the system and not on some fixed static policy.
Answer : B

9. 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

10. When a child dies, it sends a _______________signal to its parent.
A. SIGCHLD
B. EDEADLK
C. WNOHANG
D. SEDECHLD
Answer : A

11. The primary purpose of an operating system is:
A. To allow people to use the computer,
B. To make the most efficient use of the computer hardware
C. To make computers easier to use
D. To keep systems programmers employed
Answer : B

12. The problem with logical dumping is ________________
A. very costly
B. very slow
C. human errors
D. all of these
Answer : B

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

14. The name services of DCE include ________
A. the Cell Directory Service
B. the Global Directory Service
C. the Global Directory Agent
D. A,B and C
Answer : D

15. ____________ file system allows sharing in multiple different locations grouped under one folder.
A. Direct
B. distributed
C. sequential
D. parallel
Answer : B

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

17. The primary purpose of an operating system is a …
A. To allow people to use the computer
B. To make the most efficient use of computer hardware
C. To make computer easier to use
D. To keep system programmer employed
Answer : B

18. The early ARPAnet is an example of a distributed computing system based on the ________________.
A. Minicomputer model
B. Workstation model
C. Hybrid model
D. Processor pool model
Answer : A

19. 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

20. ____ 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

21. A solution to starvation is _____________.
A. segmentation
B. Aging
C. Pagng
D. virtual memory
Answer : B

22. 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

23. 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 : B

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

25. In the case of____________, message remains in the senders address space until the receiver executes the corresponding receive.
A. No buffering
B. Single message buffering
C. Unbounded-capacity buffer
D. Finite bound buffer
Answer : A

26. An orphan process is automatically inherited by the _____and becomes a _______ of this process.
A. 'init' process, father
B. 'init' process, child
C. 'initial process, father
D. 'it' process, child
Answer : B

27. __ is the program run on a computer when the computer boots up
A. System software
B. Operating system
C. System operations
D. None
Answer : B

28. 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

29. In case of modification an unauthorized party not only gains access to but tampers with an asset. This is an attack on ____________________.
A. availability
B. confidentiality
C. integrity
D. authenticity
Answer : C

30. 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

31. One of the wonderful things about UNIX is its ___________names.
A. Unlimited path
B. Unlimited directory
C. Limited path
D. Limited file
Answer : A

32. 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

33. 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

34. RPN stands for
A. Reverse Polish Notation
B. Record Police Notation
C. Record Polish Notation
D. Reverse Police Negation
Answer : A

35. 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

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

37. 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

38. A process is ____________________
A. A program in Execution.
B. An asynchronous activity.
C. The 'dispatchable' unit.
D. All A, B, C
Answer : D

39. 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

40. An operating system version designed for use with a media center PC is Microsoft Windows XP
A. Media center edition
B. Home edition
C. Tablet PC edition
D. None of above
Answer : A

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

42. The _____________ are based on modification of the original message in some manner, or on creation of a false message.
A. Passive attack
B. Release of message content attack
C. Traffic analysis attack
D. Active attack
Answer : D

43. ____________approach can place the data directly into the memory or take the data directly from the memory without direct intervention from the processor.
A. DMA
B. Daisy chain arbitration
C. polling
D. none of these
Answer : A

44. A page fault occurs when
A. the page is not found in the memory
B. the page is found in the memory
C. the Segmentation starts
D. the Deadlock happens
Answer : A

45. Process migration involves__________________
A. Selection of a process to be migrated
B. Selection of destination system or node
C. Actual transfer of the selected process to the destination system or node
D. All A, B, C
Answer : D

46. A shared memory segment first needs to be allocated (create, using the__________ system call.
A. semget()
B. msgrcv()
C. shmget()
D. mknod()
Answer : C

47. Objects location is found by _________________
A. Broadcasting
B. Encoding Location of objects within UID
C. Searching creator node first and then broadcasting
D. All A, B, C
Answer : D

48. ______________ 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

49. Identify the server:
This type of server generally remains in existence indefinitely. It is shared by many clients. Servers of this type are created and installed before the clients use them.
A. Instance-per-call-servers
B. Persistent Servers
C. Non-Persistent Servers
D. Semantic server
Answer : B

50. A program to be executed must be in ---------------
A. main memory
B. secondary memory
C. virtual memory
D. Read only memory
Answer : A