Punjab University 2005 B.Tech Electronics and Communications Engineering COMTER NETWORK - Question Paper

COMPUTER NETWORK
NOTE:- This paper consist of 3 parts. part A is compulsory. Do any 4 ques. from
part B and any 2 ques. from part C

Section-A Marks : 20

1(a) explain the digital and analog kinds of communication.
(b) Differentiate ranging from Synchronous and Asynchronous kinds of Communications.
(c) explain the mechanism of microwave transmission.
(d) List the features of Coaxial Cables.
(e) explain the concept of messange Switching.
(f) elaborate the merits of Ring Topology ?
(g) elaborate the various kinds of services given by data link Layer to Network layer ?
(h) explain the significance of IEEE standards.
(i) What is meant by TDM technique ?
(j) explain the role of IP protocol.

Section-B Marks:5 every

2. explain the characteristics of various kinds of communication channels available for transmission.
3. explain the working of CSMA/CD protocol in detail.
4. define the procedure of framing and fault control by Data Link Layer.
5. discuss the working of Network and transport layer of OSI reference model.
6. explain the term internet working. elaborate the various components to create an internet ?

Section-C Marks : 10 every

7. Compare the working of various layers of OSI model with TCP/IP reference model.
8. define the message formats, message headers and e-mail gateways associated with e-mail transmission.
9. Comapre the various network topologies in detail.

Earning:   Approval pending.