Interview Questions on Operating System Basics set-11

This set of interview questions on operating systems includes the collection of the top 20 multiple-choice questions on the basics of operating systems. It includes interview questions on the primary job of the operating system, memory allocation scheme, layers of the Operating system, advantage of multiprogramming, and the different states of the process.

1) Which of the following is crucial time while accessing data on the disk?
A. Seek time
B. Rotational time
C. Transmission time
D. Waiting time

2) What is the primary job of the operating system is a computer?
A. Command resources
B. Manage resources
C. Provide utilities
D. Be user friendly

3) The ……… is a user process that initiates a remote procedure call.
A. client
B. server
C. network
D. operating system

4) Which of the following memory allocation scheme suffers from external fragmentation?
A. Segmentation
B. Pure demand paging
C. Swapping
D. Paging

5) Which of the following is used to remove of process from active contention of the CPU and reintroduce them into memory later?
A. Interrupt
B. Swapping
C. Signal
D. Thread

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6) The operating system manages …..
A. memory
B. processor
C. disk and I/O devices
D. all of the above

7) Information about a process is maintained in a ………
A. stack
B. translation looks like a side buffer
C. process control block
D. program control block

8) Paging ………
A. solves the memory fragmentation problem
B. allows modular programming
C. allows structured programming
D. avoids deadlock

9) Which is not the layer of the Operating system?
A. Kernel
B. Shell
C. Application program
D. Critical Section

10) Distributed OS works on the ………… principle.
A. file foundation
B. single system image
C. multi-system image
D. networking image

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11) The collection of processes on the disk that is waiting to be brought into memory for execution forms the …….
A. ready queue
B. device queue
C. input queue
D. priority queue

12) In ……. condition, processes are allowed to request new resources without releasing the resources that they are currently holding.
A. Mutual exclusion
B. Hold and wait
C. No preemption
D. Circular wait

13) The time taken by the disk arm to locate the specific address of a sector for getting information is called …..
A. rotational delay
B. seek time
C. search time
D. response time

14) The principle of locality of reference justifies the use of ……..
A. virtual memory
B. interrupts
C. main memory
D. cache memory

15) In ………. condition, a resource that has been allocated to a process becomes available for allocation to another process only after it has been voluntarily released by the process holding it.
A. Mutual exclusion
B. Hold and wait
C. No preemption
D. Circular wait

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16) Identify the odd thing in the services of the operating system …
A. Accounting
B. Protection
C. Error detection and correction
D. Deadlock handling

17) Multiprocessing ………..
A. makes the operating system simpler
B. allows multiple processes to run simultaneously
C. is completely understood by all major computer vendors
D. allows the same computer to have the multiple processors

18) In …………. condition, two or more processes must form a circular chain in which each process is waiting for a resource that is held by the next member of the chain.
A. Mutual exclusion
B. Hold and wait
C. No preemption
D. Circular wait

19) Which of the following is not the advantage of multiprogramming?
A. Increased throughput
B. Shorter response time
C. Decreased operating system overhead
D. Ability to assign priorities of jobs

20) Which is not a state of the process?
A. Blocked
B. Running
C. Ready
D. Privileged

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Answers:

1) A. Seek time
2) B. Manage resources
3) A. client
4) A. Segmentation
5) B. Swapping
6) D. all of the above
7) C. process control block
8) A. solves the memory fragmentation problem
9) D. Critical Section
10) B. single system image
11) C. input queue
12) B. Hold and wait
13) B. seek time
14) D. cache memory
15) C. No preemption
16) C. Error detection and correction
17) D. allows the same computer to have the multiple processors
18) D. Circular wait
19) C. Decreased operating system overhead
20) D. Privileged

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