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Q.

Device drivers are implemented to interface ____________

A

character devices

B

block devices

C

network devices

D

all of the mentioned

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MCQ

1.

When hardware is accessed by reading and writing to the specific memory locations, then it is called ____________

A

port-mapped I/O

B

controller-mapped I/O

C

bus-mapped I/O

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

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3.

A character stream 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

4.

When device A has a cable that plugs into device B, and device B has a cable that plugs into device C and device C plugs into a port on the computer, this arrangement is called a _________

A

port

B

daisy chain

C

bus

D

cable

Discussion

MCQ

5.

What is a dedicated device?

A

opposite to a sharable device

B

same as a sharable device

C

can be used concurrently by several processes

D

none of the mentioned

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