STUPIDSID
MU Electronics and Telecom Engineering (Semester 6)
Computer Communication & Telecom Networks
December 2011
Computer Communication & Telecom Networks
December 2011
1 (a)
Why does UDP exist? Would it not have been enough to just let user processes send raw IP packets?
5 M
1 (b)
It was shown that flooding can be used to determine the minimum hop route. Can it be used to determine the minimum delay route?
5 M
1 (c)
What do we mean when we say that a bridge can filter traffic? Why is filtering important?
5 M
1 (d)
Why does the Internet use a connection- less network service?
5 M
2 (a)
What is ALOHA? Derive an expression for slotted and pure ALOHA.
10 M
2 (b)
What is collision and collision domain? How collision and collision domain can be reduced? How can collision be detected? Explain CSMA/CD.
10 M
3 (a)
What is ARQ? What are the types of ARQs? Explain Go Back N ARQ in detail.
10 M
3 (b)
What is HDLC? What are HDLC frame types and mode of operation? Explain in detail one mode.
10 M
4 (a)
Write Dijkstra's Algorithm. Find the shortest path to destination node 6. Will BellMan Ford Algorithm yield the same solution? Why and why not?
10 M
4 (b)
What is QoS? Explain various techniques to improve QoS.
10 M
5 (a)
Explain TCP Header in detail.
10 M
5 (b)
What is classful IP addressing? Find Maximum addresses by each class.
10 M
6 (a)
What is open system? Explain OSI model by drawing sender, receiver, intermediate node and various communication between them.
10 M
6 (b)
Compare various switching methods.
10 M
7 (a)
Write a note on Delay Model.
7 M
7 (b)
Write a detailed note on Leaky Bucket Algorithm.
7 M
7 (c)
Transmission Impairment cause and solution.
6 M
More question papers from Computer Communication & Telecom Networks