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MCQ

Q.

Which layer is the layer closest to the transmission medium?

A

Physical

B

Data link

C

Network

D

Transport

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1.

Header are ______ when data packet moves from upper to the lower layers?

A

Modified

B

Removed

C

Added

D

All of the mentioned

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2.

There is no need to establish and terminate a connection through open and close operation in ___________

A

stateless file service

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stateful file service

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both stateless and stateful file service

D

none of the mentioned

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Network operating system runs on ___________

A

server

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every system in the network

C

both server and every system in the network

D

none of the mentioned

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Transport

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5.

What are the characteristics of atomicity?

A

All operations associated are executed to completion or none are performed

B

One processor as coordinator which handles all requests

C

When responses are received from all processes, then the process can enter its Critical Section

D

Use communication links

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