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2 C 20116
Part C

Answer any five questions.
Each question carries 5 marks.

Give an account on different network topologies.

Find CRC code for the message M = 10100001 with polynomial function p (x) = X° +1.
Explain the differences between Pure and Slotted ALOHA.

Explain the transition issues from IPv4 address to IPv6 addressing schemes.

What is DNS ? Explain how it resolves domain name into TP address.

Compare and contrast Remote Login and FTP protocol.

Differentiate between block cipher and stream cipher.

What are the fundamental elements of public key cryptosystem ? Explain.
(5 x 5 = 25 marks)
Part D

Answer any three questions.
Each question carries 10 marks.

Compare and contrast OSI and TCP/IP reference models.

Explain any two error detection and correction techniques with examples.
Discuss about Distance Vector Routing and Link State Routing algorithms.
Explain the various services offered by transport layer.

Describe RSA Digital Signature Scheme.
(3 x 10 = 30 marks)

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