About Me

Computer Networks And Management June2012 CS9213

Sponsored Ads:

Quick Links
University Papers University Syllabus Entrance Exam
PSU Papers Bank Papers Placement Papers
VTU Anna Univerity Syllabus Anna Univerity Papers
First Semester
Computer Science and Engineering
(Common to M.E. Software Engineering and M.Tech - Information Technology)
(Regulation 2009)

GATE  |  TANCET  |  Govt & PSU Papers  |  Bank Papers  |  Travel Tips

University Papers  |  Programming, Interview Questions  |  Share market


Other Departments Papers: Click Here

Download PDF File - Click Here

Part A — (10 x 2 = 20 Marks)

1. How does ATM achieve high speed switching?
2. What is the principle of binary exponential back off technique? What is its purpose?
3. In a packet switching network, 24 packets arrive at a particular node in an hour on average. There are typically 8 packets in the node. What is the average time spent by the packet in the node?
4. What is the need for explicit and implicit signaling mechanisms in frame relay congestion control?
5. Mention any two advantages of token bucket traffic specification.
6. Mention any one advantage and disadvantage of fair queuing.
7. Derive an expression for the throughput of TCP sliding window flow control scheme, ignoring TCP overhead.
8. What are the objectives of ATM layer traffic and congestion control?
9. What is the principle of MPLS traffic engineering?
10. Why is TCP, not suitable for real time distributed applications?

Part B — (5 x 16 = 80 Marks)

11. (a) What is the design goal of fibre channel? What are its requirements and facilities?
What are the key elements of a fibre channel network? What are its layers? Explain in detail. (16)
(b) (i) Illustrate the Header Error control algorithm at the receiver in an ATM network. What are the consequences of errors in cell header? (8)
(ii) What is the need for frame relay? How does it differ from conventional packet switching? What are the functions of its layers? Discuss in detail. (8)

12. (a) (i) Messages of 4 different sizes flow through a message switch. Fifty percent of the messages take 1ms to serve, twenty percent take 1.5ms to serve, eighteen percent of the messages take 2 ms to serve and the remaining messages take 1.75 ms to serve. Calculate the average time spent in the switch and the average number of messages in the switch, when messages arrive at an average rate of  One per 5ms and  One per 6 ms (8)
(ii) What are the principles of explicit congestion signaling techniques? How do they differ from implicit signaling? Explain. (8)
(b) Illustrate the objectives of frame relay congestion control. Also illustrate the operation of committed information rate. (16)

13. (a) Illustrate the RTT variance estimation technique of TCP congestion control. Also illustrate the operation and role of exponential RTO back off and Karn’s algorithm. (16)
(b) What are the traffic control functions, needed to maintain the Qos of ATM connections? Briefly describe each one of the functions. (16)

14. (a) Illustrate the bit by bit processor sharing technique and Bit Round Fair Queuing technique with an example. What are their advantages and disadvantages? (16)
(b) What are the design goals of Random Early Detection? How are they achieved in the algorithm? Discuss. (16)

15. (a) Explain the RSVP operation and protocol mechanism. What are the different types of reservation attributes and styles? Discuss.
(b) Illustrate the RTP protocol architecture and its features. Also illustrate the basic concept of RTP data transfer protocol.

Post a Comment