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Sixth Semester B.E. Degree Examination, Dec.2013lJan.Z$l4 Time: 3 hrs.
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Gomputer Networks
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Differe,ntiate between connection oriented and connectionless services. Define routing and its goals. Consider the network, in the following Fig.Q.1(c):
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(10 Marks) Explain the leaky bucket algorithm for policing the tralfic at flow control. Explain fair queing at the packet level. Show the transmission sequences for field flow and packet by packet system by considering the two logical buffers (buffer 1, buffer 2). Assume each has a single L-bit paCket to transmit at t : 0 and no sub-sequent packets arrive, assume (10 Marks) C : L bits/second: .1 packet/second.
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', ' (06 Marks) Write the advaniages and disadvantages of UDP. What do you mean by tunneling? What are the needs to changes fiom IPV4 to IPV6? Write (10 Marks) the IPV6 basic header and describe its fields. What is routing information protocol (RIPX What is the maximum width of a RIP
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(08 Marks) With a neat diagram, explain the TCP state transition diagram. Explain in detail, the operation of OSPF (open shortest path first) by considering on example
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Use the diJkstra"s algorithm to find the set of shortest path from node 4 to other nodes. (t2 Marks) Find the set of associated routing table
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Note: Answer FIVEfull questions, selecting at leust TWO questions from each part.
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PART _ B Explain DNS message format with a neat diagram. cg$€T**,CApply RSA and do the following: L8BR.,&f{Y i) Encrypt d:3, b : 11, x: 3 and m: 9. ii) Find the correspondirg y. iir) Decrypt the ciphertext. ^--', What is SNMP? List the PDUs of SNMPV2? Explarn SNMP PDU format.
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For More Question Papers Visit - www.pediawikiblog.com 10cs64 List the benefits of creating VPN's. Explain VPN types. Explain need for overlay networks and P2P connection.
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