1000+ Operating System Multiple Choice Question Answer [Solved]

1. 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

2. ______________approach simplifies debugging and system verification.
A. Kernel
B. Layered
C. Extended
D. Virtual machine
Answer : B

3. In case of ____________________transparency a file can transparently move to another server.
A. Location
B. Migration
C. Replication
D. Concurrency
Answer : B

4. SRM stands for
A. Security Resource Manager
B. Secret Resource Manager
C. Security Reference Monitor
D. Security Reference Manual
Answer : C

5. A two-byte integer called ____________is interpreted as an index into an array of inodes in a fixed, known location on disk.
A. an inode
B. an inumber
C. an imap
D. an imark
Answer : B

6. Underlined text, such as text and folder names is referred to as
A. Hyperlink
B. Menu
C. Source drive
D. None of these
Answer : A

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

8. Which is the layer of a computer system between the hardware and the user program
A. Operating system
B. Operating environment
C. System environment
D. None
Answer : B

9. 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

10. 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

11. 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

12. 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

13. A _______________in a distributed system is a string of bits or characters that is used to refer to an entity.
A. name
B. attribute
C. identifiers
D. addresses
Answer : A

14. 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

15. 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

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

17. ____ 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

18. In _______, if a processor writes the value 100 to the memory location x, this write operation will only change the contents of its local memory and will not affect the contents of the memory of any other processor.
A. Tightly coupled systems,
B. Loosely coupled systems
C. Parallel processing systems
D. File management system
Answer : B

19. ______________ is a situation in which two computer programs sharing the same resource are effectively preventing each other from accessing the resource, resulting in both programs ceasing to function.
A. Semaphore
B. Deadlock
C. Mutual Exclusion
D. No preemption
Answer : B

20. 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

21. Wiretapping to capture data in a network is an example of ________________
A. interruption
B. interception
C. fabrication
D. modification
Answer : B

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

23. Two clocks are said to be synchronized at a particular instance of time if the difference in time values of the two clocks is less than some specified constant. The difference in time values of two clocks is called ___________.
A. Interrupt
B. Clock Frequency
C. Clock Ticks
D. Clock Skew
Answer : D

24. 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 chip are checked to ensure that they are working properly
Answer : A

25. A _____________is a collection of processors that do not share memory, peripheral devices,or a clock.
A. Computer system
B. distributed system
C. network
D. None of the above
Answer : B

26. ______________ 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

27. The _________takes any characters from standard input, and then echoes them to standard output.
A. kill character
B. cat command
C. cate command
D. control command
Answer : B

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

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

30. 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

31. Windows 2000 supports -------------- type of file system
A. NTFS
B. EFS
C. FEFS
D. EFFS
Answer : A

32. 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

33. 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

34. 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

35. 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

36. 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

37. 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

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

39. Find out the characteristics of System-oriented names:
A. They are large integers or bit strings.
B. They are of the same size
C. Generally shorter than human-oriented names and are easy for manipulations like hashing, sorting and so on.
D. All A, B, C
Answer : D

40. 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

41. 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