11-02-2013, 01:47 PM
M.E/M.Tech DEGREE EXAMINATION, JANUARY 2010
EXAMINATION.docx (Size: 13.59 KB / Downloads: 24)
Part A – (10 x 2 = 20 Marks)
1. List any two advantages of virtual paths.
2. Name any five applications of fibre channel.
3. Differentiate Committed burst rate from Excess burst rate.
4. What are the effects of congestion?
5. State the difference between Constant bit rate and Real time variable bit rate.
6. What is GFR traffic management?
7. Draw the DS field and give its significance.
8. Differentiate elastic applications from inelastic applications.
9. State the role of Forward Equivalence Class in MPLS.
10. What is RTCP
Part B – (5 x 16 = 80 Marks)
11. (a)(i)Draw the ATM protocol architecture and explain in detail. (10)
(ii)Explain the ATM cell format with a neat diagram? (6)
(Or)
(b)(i)Draw the single cell wireless LAN configuration and explain. (10)
(ii)Write short notes on Fast Ethernet. (6)
12. (a)Explain in detail about the following mechanisms used for congestion control.
(i)Choke packet
(ii)Back Pressure
(iii)Implicit congestion signaling and
(iv)Explicit congestion signaling. (4 x 4 = 16)
(Or)
(b)Explain in detail about the following frame relay congestion control techniques.
(i)Discard control
(ii)BECN
(iii)FECN
(iv)Implicit congestion notification. (4 x 4 = 16)
13. (a)(i)Explain the RTT variance estimation in detail (Jacobson Algorithm). (10)
(ii)List out the chief characteristics of the ABR services. (6)
(Or)
(b)(i)Explain the concept of dynamic window sizing on congestion. (10)
(ii)Compare the performance of TCP over ATM. (6)
14. (a)(i)Explain the concept involved in fair queuing and weighted fair queuing. (5 + 5)
(ii)Explain the RED algorithm. (6)
(Or)
(b)Draw the architectures of ISA and explain in detail about its components. (16)
15. (a)(i)Write a neat sketch explain the RSVP protocol mechanism. (10)
(ii)What do you mean by label stacking in MPLS? (6)
(Or)
(b)(i)Explain in detail about RTP protocol Architecture. (10)
(ii)List out the RSVP characteristics. (6)