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Interview Questions on Operating System Basis set-11

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 removal of process from active contention of CPU and reintroduce them into memory later?

A. Interrupt

B. Swapping

C. Signal

D. Thread


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 look 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


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 for 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


16) Identify the odd thing in the services of operating system ...

A. Accounting

B. Protection

C. Error detection and correction

D. Dead lock 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 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


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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