Convergence of Technologies & Networking in Communication - Dec 2012
Information Technology (Semester 5)
TOTAL MARKS: 100
TOTAL TIME: 3 HOURS (1) Question 1 is compulsory.
(2) Attempt any four from the remaining questions.
(3) Assume data wherever required.
(4) Figures to the right indicate full marks. 1(a) Describe the characteristics of 3G system. (5 marks) 1(b) List the protocols/technologies along with the topology and supported areas of network.(5 marks) 1(c ) List the functions performed by LLC sub layer. Draw its PDU format. (5 marks) 1(d) Compare different multiplexing techniques (5 marks) 2(a) Classify different switching architectures. Discuss one of them(10 marks) 2(b) Explain ISDN protocol stack in detail with neat sketches.(10 marks) 3(a) Explain ASK, FSK and PSK in detail. (10 marks) 3(b) Describe FDMA/TDMA in GSM networks. (10 marks) 4(a) What is traffic management? Explain different elements of Traffic management.(10 marks) 4(b) How Key Management for symmetric encryption techniques is done using Kerberos?(10 marks) 5(a) Explain Telecommunication Management Network(TMN) with appropriate diagram. (10 marks) 5(b) Discuss the benefits of spreading codes. What are the issues that still remain to be addressed by spreading codes? Describe how the process of scrambling is used to solve these problems.(10 marks) 6(a) With the help of neat diagram Explain GSM architecture(10 marks) 6(b) Explain classification of signalling techniques. (10 marks)
Write short notes on any two of the following:-
7(a) Handoff Algorithm(10 marks) 7(b) Firewalls(10 marks) 7(c ) Adhoc wireless networks(10 marks)