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MCQ

Q.

Switching at the network layer in the Internet uses the datagram approach to:

A

Message switching

B

Circuit switching

C

IP switching

D

Packet switching

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1.

Which multiplexing technique shifts each signal to a different carrier frequency?

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FDM

B

synchronous TDM

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All of the above

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When you connect to an online information service, you are asked to provide some kind of identification such as your name, an account number and a password. What is the name given to this brief dialogue between you and the information system?

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A hybrid computer uses a _____ to convert digital signals from a computer into analog signals.

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4.

Error detection at the data link level is achieved by

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Bit Stuffing

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5.

Packet Switch Stream (PSS) was introduced in

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the US in 1961 (&) the UK in 1981

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the US in 1961

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