Question Paper: Computer Communication Networks Question Paper - May 18 - Electronics Engineering (Semester 7) - Mumbai University (MU)
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Computer Communication Networks - May 18

Electronics Engineering (Semester 7)

Total marks: 80
Total time: 3 Hours
INSTRUCTIONS
(1) Question 1 is compulsory.
(2) Attempt any three from the remaining questions.
(3) Draw neat diagrams wherever necessary.

Q1) Answer any four:

1(a) Explain the various categories of networks.
(5 marks) 00

1(b) Give any four functions of Data Link Layer.
(5 marks) 00

1(c) What are GEO, MEO and LEO satellites
(5 marks) 00

1(d) How does Token Ring work ?
(5 marks) 1138

1(e) Explain the concept of Pseudo header used in UDP.
(5 marks) 00

2(a) Explain the various physical media with the help of neat diagrams
(10 marks) 00

2(b) Compare Circuit Switching, Packet Switching and Message Switching.
(10 marks) 00

3(a) What is Traffic shaping? Explain "Leaky bucket" technique of traffic shaping.
(10 marks) 00

3(b) Explain the different Options used in IP Datagram.
(10 marks) 1145

4(a) Five equal-size datagrams belonging to the same message leave for the destinations one after another. However, they travel through different paths as shown in Table

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We assume that the delay for each switch (including waiting and processing) is 3, 10, 20, 7, and 20 ms respectively. Assuming that the propagation speed is 2 x 108 m/s find the order the datagrams arrive at the destination and the delay for each. Ignore any other delays in transmission.

(10 marks) 00

4(b) Explain the various implementations of Standard Ethernet with neat diagrams.
(10 marks) 1135

5(a) Draw the TCP segment header format and explain each field in brief.
(10 marks) 1124

5(b) Explain the recursive resolution and iterative resolution methods of resolving the Domain names.
(10 marks) 00

Q6) Write short notes on: (any four)

6(a) CSMA/CA
(5 marks) 1135

6(b) PPP frame format.
(5 marks) 00

6(c) Three Way Handshakes.
(5 marks) 00

6(d) World Wide Web.
(5 marks) 00

6(e) IPV6
(5 marks) 1149

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