Shivaji University 2007 B.E Computer Science DATA COMMUNICATIONS - Question Paper

Y-790
SECOND YEAR OF COMPUTER SCIENCE AND ENGINEERING (PART-1) EXAMINATION, 2007
SHIVAJI UNIVERSITY, KOLHAPUR
DATA COMMUNICATIONS

Day and Date: Monday, 16-11-2007 Total Marks: 100
Time: 3.00pm to 6.00pm

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

2) Figures to right indicate full marks.


SECTION-1


Q.1. a) discuss various transmission impairments that limits communication system Performa Nance.[Marks 10]

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



Q.2. a) what is the difference ranging from unshielded twisted pair and shielded twisted pair? [Marks 8]

b) discuss optic fiber cable in detail.[Marks 8]



Q.3. a) elaborate the advantages of packet switching compared to circuit switching?[Marks 8]

b) discuss terms data, signaling and transmission used in data communication.[Marks 8]



Q.4. a) discuss amplitude modulation technique. [Marks 8]

b) explain advantages of optical fiber over twisted pair cables.[ Marks 8]



Q5.Explain how synchronous time division multiplexing (TDM) works.[ Marks 16]





SECTION-2



Q.6. Compare OSI and TCP/IP reference model.[Marks 16]


Q.7. discuss n the functions of Presentation Layer and Application Layer of OSI reference model.




Q.8 a) what is need of flow control? [Marks 8]

b) Describe-serial IP in detail.[Marks 8]



Q.9 a) what types of errors will be detected using CRC? Justify your ans.[Marks8]

b) Write an algorithm for unrestricted simplex method.[Marks 8]



Q.10 discuss point to point protocol in detail.[Marks 16]

Earning:   Approval pending.