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MCQ

Q.

The ________ keeps state information about the use of I/O components.

A

CPU

B

OS

C

kernel

D

shell

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MCQ

1.

What is an interrupt vector?

A

It is an address that is indexed to an interrupt handler

B

It is a unique device number that is indexed by an address

C

It is a unique identity given to an interrupt

D

None of the mentioned

Discussion

MCQ

2.

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

Discussion

MCQ

3.

If one or more devices use a common set of wires to communicate with the computer system, the connection is called ______

A

CPU

B

Monitor

C

Wirefull

D

Bus

Discussion

MCQ

4.

The _________ are reserved for events such as unrecoverable memory errors.

A

non maskable interrupts

B

blocked interrupts

C

maskable interrupts

D

none of the mentioned

Discussion

MCQ

5.

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

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