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MCQ

Q.

The ______ register is read by the host to get input.

A

flow in

B

flow out

C

data in

D

data out

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What is an ISR?

A

Information Service Request

B

Interrupt Service Request

C

Interrupt Service Routine

D

Information Service Routine

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2.

How does the Hardware trigger an interrupt?

A

Sending signals to CPU through a system bus

B

Executing a special program called interrupt program

C

Executing a special program called system program

D

Executing a special operation called system call

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3.

A keyboard is an example of a device that is accessed through a __________ interface.

A

block stream

B

set of blocks

C

character stream

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none of the mentioned

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4.

For large data transfers, _________ is used.

A

DMA

B

programmed I/O

C

controller register

D

none of the mentioned

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5.

The interrupt vector contains ____________

A

the interrupts

B

the memory addresses of specialized interrupt handlers

C

the identifiers of interrupts

D

the device addresses

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