IV.

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2 ‘ C 21119

Differentiate VRC and LRC.
Explain remote procedure call technique.
Explain about bit map protocols.
Describe electronic mail.
What are the responsibilities of data link layer in Internet model ?
What is Error Detection? What are its methods ?
(5 x 4 = 20 marks)

Answer any five questions :

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What are the three multiplexing techniques used in networks ?
Explain the OSI reference model with the help of a neat diagram.
Explain various congestion control techniques.
Compare various switching techniques.
Explain different types of topologies used in Network.
Explain different Transport layer protocols.
Discuss open loop and closed loop congestion control.
Explain the various random access protocols in detail.
(5 x 8 = 40 marks)