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Operating System Concepts MCQs

A process may spawn a new process. If it does, the creating process is called ___________.

A. Child process
B. Parent process
C. Wakeup a process.
D. None of the above
View Answer

B. Parent process

The most common multi-processor systems now __________

A. Smp
B. Dma
C. Dmo
D. None of the above
View Answer

A. Smp

_________ requires only a single interrupt for each block of character transferred in an i/o operation.

A. Dmo
B. Virtual storage
C. Base point address
D. Dma
View Answer

D. Dma

A special register in the processing unit called ____________.

A. Block table origin
B. Buffer register
C. Block number
D. None of them
View Answer

D. None of them

The addresses in a block mapping system are _____dimensional.

A. Two
B. One
C. Three
D. None of the above
View Answer

A. Two

The ________is the entity that defines a process to the operating system.

A. Svc
B. Pcb
C. Psw
D. None of the above
View Answer

B. Pcb

The ___mechanism helps keep the operating system secure from the users.

A. Svc
B. Pcb
C. Psw
D. None of the above
View Answer

A. Svc

An____________is one that spends more of its time doing i/o thanit spends doing computations.

A. I/o bound process
B. Cpu bound process
C. Long term scheduler
D. Short term scheduler
View Answer

A. I/o bound process

The_________________, selects processes from this pool and loads them into memory forexecution.

A. Long term scheduler
B. Job scheduler
C. I/o bound process
D. A & B
View Answer

D. A & B

As processes enter the system, they are put into a________.

A. Ready queue
B. Job queue
C. Running queue
D. Waiting queue
View Answer

B. Job queue

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