Basara University 2007 B.E Computer Science Digital Communications - Question Paper
Saturday, 02 February 2013 10:50Web
Day and Date: Monday, 15-05-2006 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) what is DCE? And what is its function?[Marks 8]
b) discuss delta modulation technique.[Marks 8]
Q.4 a) discuss the differences ranging from NRZ-L and NRZ-I.[Marks 8]
b) elaborate the major disadvantages of asynchronous transmission?[Marks 8]
Q.5 a) How is synchronization is given for synchronous transmission? [Marks 8]
b) discuss circuit switching concepts.[Marks 8]
SECTION-1
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.
[16]
Q.8 Write a short notes on any three:[Marks 18=6*3]
a) LAN
b) MAN
c) Interfaces and services
Q.9. a) discuss various services given by data link layer to network layer.[Marks 8]
b) What is the need of flow control? [Marks 8]
Q.10.a) Describe-serial IP in detail.[Marks 8]
b) discuss the Data Link Layer in the Internet.[Marks 8]
Earning: Approval pending. |