Dr Bhim Rao Ambedkar University 2006 B.Tech Information Technology Data Communications - Question Paper

H-421
SECOND YEAR OF COMPUTER SCIENCE AND ENGINEERING (PART-1) EXAMINATION, 2005

DATA COMMUNICATIONS

Total Marks: 100
Time: 2.30pm to 5.30pm

Instructions: 1) Attempt any 3 ques. from every part.

2) Figures to right indicate full marks.


SECTION-1

Q.1. a) discuss the ireless transmission in detail. [ Marks 10]

b) define analog and digital data transmission. [Marks 8]



Q.2 a) discuss coaxial cable in detail.[Marks 8]

b) discuss amplitude modulation technique.[Marks 8]



Q.3 a) discuss the Full Duplex and Half Duplex Data transmission.[Marks 8]

b) discuss how frequency division multiplexing (FDM) works.[Marks 8]



Q.4. a) discuss the differences ranging from amplitude shift keying and frequency shift keying.

[Marks 8]

b) discuss the space division switching.[Marks 8]







SECTION-2



Q.6. discuss n the functions of Internet Layer and Transport Layer of TCP/IP reference model.[Marks 16]



Q.7. Write a short notes on any three: [Marks 18=6*3]

a) X.25 networks

b) LAN

c) LAN Design problem for layers

d) MAN


Q.8 Compare connection oriented and connectionless services.[Marks 16]



Q.9. a) what types of errors will be detected using CRC? Justify your ans.[Marks 8]

b) discuss simple stop and wait protocol.[Marks 8]



Q.10. discuss sliding window protocol using Go Back n in detail. Marks 16]

Earning:   Approval pending.