K L University 2009 B.Tech Information Technology Model Computer Networks IT 325 - Question Paper

KONERU LAKSHMAIAH COLLEGE OF ENGINEERING (AUTONOMOUS)
DEPARTMENT OF info SCIENCE AND TECHNOLOGY
MODEL ques. PAPER
III/IV B.TECH exam

Academic Year: 2008-2009 Semester: II
Subject: Computer Networks Code: IT 325
Duration: three Hours Max.Marks:60

UNIT-I
1. a) describe Network hardware and software. define the hardware aspects of computer networks. 6Marks
b) Compare the OSI and TCP/IP reference architectures 6Marks
(OR)
2. a) discuss OSI reference model in detail. 6Marks
b) Write in detail about various guided transmission media. 6Marks

UNIT-II
3. a) elaborate the problems to be considered in the design of data link layer. 6Marks
b) discuss cyclic redundancy code. provide the algorithm for computing the checksum of the received frame 6Marks
(OR)
4. discuss the subsequent protocols:
(i) Stop and Wait Protocol
(ii) Go-Back – N Protocol
(iii) Selective repeat Protocol 12 Marks

UNIT-III
5. a) elaborate various routing algorithms? explain any 1 of the dynamic routing algorithm. 6Marks
b) discuss briefly various congestion control strategies. 6Marks
(OR)
6. a) provide the styles of internet working. elaborate the advantages and disadvantages it? 6Marks
b) discuss the IPv4 header format. 6Marks




UNIT-IV

7. a) discuss the connection management and time management of TCP 8Marks
b) discuss the TCP header format 4Marks
(OR)
8. a) discuss the Services given by Transport layer. 8Marks
b) Compare the TCP and UDP 4Marks

UNIT-V

9. a) explain with examples the DNS 6Marks
b) Write short notes on World Wide Web 6Marks
(OR)
10. discuss in detail how various protocols are used in e-mail for message transfer.

Earning:   Approval pending.