Guru Nanak Dev University 2007 B.E Computer Science Data Communication (CS - 206) -2k7 - Question Paper

Sr.No. 6723
2057
M.Tech (CSE) fourth Semester / B.Tech (CSE) fourth semester
Paper : CS-206

Time : three hours

Maximum Marks : 60

Nomenclature : Data Communication

NOTE : Attempt any 5 ques.. All ques. carry equal marks

1. elaborate the various layers in TCP/IP reference Model? elaborate their fuctionalities? Also explain the difference ranging from TCP/IP and OSI reference model. (12)

2. discuss CRC (Cyclic Redundancy Check) code for fault detecting using suitable examples. (12)

3. elaborate the characteristics features od sliding window protocols? discuss 1 bit sliding window protocols. (12)

4. What is the difference ranging from adaptive and non-adaptive routing algorithms? elaborate the desirable properties of routing algorithms? discuss the shortest path routing algorithm by Djikstra. (12)

5. (a) discuss the transposition cipher using suitable examples. (6)
(b) Differentiate ranging from FTP and HTTP. (6)

6. What is a Bridge? What is the need of them? discuss the Spanning tre bridges. (12)

7. Differentiate ranging from the subsequent :
(a) Passive star and active repeater repeater in a fiber network. (3)
(b) Message switching and packet switching. (3)
(c) Persistant CSMA and non-persistant CSMA. (3)
(d) Token Ring and Token bus. (3)

8. Write short notes on the subsequent :
(a) Light Wave transmission and its limitations. (4)
(b) Gateways. (4)
(c) Tunneling in networking. (4)

Earning:   Approval pending.