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Q.

A block device transfers ____________

A

bytes one by one

B

block of bytes as a unit

C

with unpredictable response times

D

none of the mentioned

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MCQ

1.

A non blocking system call _________________

A

halts the execution of the application for an extended time

B

does not halt the execution of the application

C

does not block the interrupts

D

none of the mentioned

Discussion

MCQ

2.

In general the two interrupt request lines are ____________

A

maskable and non maskable interrupts

B

blocked and non maskable interrupts

C

maskable and blocked interrupts

D

none of the mentioned

Discussion

MCQ

3.

Caching is ________ spooling.

A

same as

B

not the same as

C

all of the mentioned

D

none of the mentioned

Discussion

MCQ

4.

A process is moved to wait queue when I/O request is made with ____________

A

non-blocking I/O

B

blocking I/O

C

asynchronous I/O

D

synchronous I/O

Discussion

MCQ

5.

What is a trap/exception?

A

hardware generated interrupt caused by an error

B

software generated interrupt caused by an error

C

user generated interrupt caused by an error

D

none of the mentioned

Discussion

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