Operating System Mcqs

Page No. 5

The child process can __________


abe a duplicate of the parent process

✓


bnever be a duplicate of the parent process

✖


ccannot have another program loaded into it

✖


dnever have another program loaded into it

✖



In UNIX, the return value for the fork system call is _____ for the child process and _____ for the parent process.


aA Negative integer, Zero

✖


bZero, A Negative integer

✖


cZero, A nonzero integer

✓


dA nonzero integer, Zero

✖



In UNIX, each process is identified by its __________


aProcess Control Block

✖


bDevice Queue

✖


cProcess Identifier

✓


dNone of the mentioned

✖


View Answer Process Identifier

With _____________ only one process can execute at a time; meanwhile all other process are waiting for the processor. With ______________ more than one process can be running simultaneously each on a different processor.


aMultiprocessing, Multiprogramming

✖


bMultiprogramming, Uniprocessing

✖


cMultiprogramming, Multiprocessing

✖


dUniprogramming, Multiprocessing

✓



Cascading termination refers to termination of all child processes if the parent process terminates ______


aNormally

✖


bAbnormally

✖


cNormally or abnormally

✓


dNone of the mentioned

✖



A parent process calling _____ system call will be suspended until children processes terminate.


await

✓


bfork

✖


cexit

✖


dexec

✖


View Answer wait

Restricting the child process to a subset of the parent’s resources prevents any process from __________


aoverloading the system by using a lot of secondary storage

✖


bunder-loading the system by very less CPU utilization

✖


coverloading the system by creating a lot of sub-processes

✓


dcrashing the system by utilizing multiple resources

✖



Bounded capacity and Unbounded capacity queues are referred to as __________


aProgrammed buffering

✖


bAutomatic buffering

✓


cUser defined buffering

✖


dNo buffering

✖


View Answer Automatic buffering

The Zero Capacity queue __________


ais referred to as a message system with buffering

✖


bis referred to as a message system with no buffering

✓


cis referred to as a link

✖


dnone of the mentioned

✖



In the Zero capacity queue __________


athe queue can store at least one message

✖


bthe sender blocks until the receiver receives the message

✓


cthe sender keeps sending and the messages don’t wait in the queue

✖


dnone of the mentioned

✖



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