Interrupts Questions

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1.

The interrupt-request line is a part of the ___________

A

Data line

B

Control line

C

Address line

D

None of the mentioned

Correct Answer: B

The Interrupt-request line is a control line along which the device is allowed to send the interrupt signal.

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2.

The return address from the interrupt-service routine is stored on the ___________

A

System heap

B

Processor register

C

Processor stack

D

Memory

Correct Answer: C

The Processor after servicing the interrupts as to load the address of the previous process and this address is stored in the stack.

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3.

The signal sent to the device from the processor to the device after receiving an interrupt is ___________

A

Interrupt-acknowledge

B

Return signal

C

Service signal

D

Permission signal

Correct Answer: A

The Processor upon receiving the interrupt should let the device know that its request is received.

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4.

When the process is returned after an interrupt service ______ should be loaded again.i) Register contents
ii) Condition codes
iii) Stack contents
iv) Return addresses

A

i, iv

B

ii, iii and iv

C

iii, iv

D

i, ii

Correct Answer: D

None

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5.

The time between the receiver of an interrupt and its service is ______

A

Interrupt delay

B

Interrupt latency

C

Cycle time

D

Switching time

Correct Answer: B

The delay in servicing of an interrupt happens due to the time is taken for contact switch to take place.

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6.

Interrupts form an important part of _____ systems.

A

Batch processing

B

Multitasking

C

Real-time processing

D

Multi-user

Correct Answer: C

This forms an important part of the Real time system since if a process arrives with greater priority then it raises an interrupt and the other process is stopped and the interrupt will be serviced.

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7.

A single Interrupt line can be used to service n different devices.

A

True

B

False

C

n>

Explanation : None

D

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Explanation : None

Correct Answer: A

None