Computer Networks - May 2014

Information Technology (Semester 4)

TOTAL MARKS: 80
TOTAL TIME: 3 HOURS (1) Question 1 is compulsory.
(2) Attempt any three from the remaining questions.
(3) Assume data if required.
(4) Figures to the right indicate full marks. 1(a) What is a network?What are its goals and application?(5 marks) 1(b) Discuss and compare various types of networks.(5 marks) 1(c) Is there any relationship between transmission media and topology?(5 marks) 1(d) What are the goals of TCP/IP Model?(5 marks) 2(a) what is OSI Model?Explain the function and protocols and services of each layer.(10 marks) 2(b) Describe about the different guided transmission media.(10 marks) 3(a) Explain the function of data link layer.(10 marks) 3(b) Explain the taxonomy of multiple access protocols.(10 marks) 4(a) Explain different categories of routing algorithms.(10 marks) 4(b) What is IP addressing ?How it is classified ?How is subnet addressing is performed.(10 marks) 5(a) What are the element of transport protocol?(10 marks) 5(b) Explain TCP Congestion Control.(10 marks)

Write short notes on: (Any four)

6(a) Connection oriented and connectionless service (5 marks) 6(b) Sliding window protocol.(5 marks) 6(c) Mobile Telephone system.(5 marks) 6(d) Communication satellite(5 marks) 6(e) Internet Control protocols(5 marks) 6(f) UDP(5 marks)