Download JNTUA MCA 2017 Nov Reg-Supply 3rd Sem 9F00302 Computer Networks Question Paper

Download JNTU Anantapur (JNTU Anantapur) Master of Computer Applications (MCA) 2017 Oct-Nov Regular Supply 3rd Sem 9F00302 Computer Networks Previous Question Paper

Code: 9F00302

MCA III Semester Regular & Supplementary Examinations November/December 2017
COMPUTER NETWORKS
(For 2012, 2013, 2014, 2015 & 2016 admitted batches only)

Time: 3 hours Max. Marks: 60

Answer any FIVE questions
All questions carry equal marks
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1 Explain the ISO-OSI reference model with a neat schematic.

2 (a) Explain sliding window protocol in data link layer.
(b) Explain how a slow receiver is protected from a fast sender in data link layer.

3 (a) Explain the functioning of pure ALOHA.
(b) Prove that the probability of successful packet delivery in pure ALOHA is 18%.

4 (a) Explain link state routing protocol in detail.
(b) Explain congestion prevention policies in network layer.

5 Explain the network layer functionalities in ATM networks.

6 (a) Explain connection establishment and release in TCP connections.
(b) Explain TCP header format and the functionalities of each field.

7 (a) Explain the DES algorithm with a neat schematic.
(b) How the integrity of a message ensured? What are the procedures incorporated?

8 (a) What are the functionalities of application layer?
(b) Explain domain hierarchy in detail.

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