Download GTU BE/B.Tech 2018 Winter 4th Sem New 2140709 Computer Networks Question Paper

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Subject Code: 2140709

GUJARAT TECHNOLOGICAL UNIVERSITY

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Instructions:

1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.

1. 1. Explain following Terms:
      1. Propagation Delay.

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      2. Super netting.
      3. Tunneling.

      (MARKS 03)

   2. Explain Physical Address, IP address, Port Address in brief.

      (MARKS 04)

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   3. Explain functionality of Bridge, Hub, Switch, Router, and Gateway.

      (MARKS 07)

2. 1. What is topology? Explain star topology in brief.

      (MARKS 03)

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   2. What is network? Explain in brief LAN and MAN.

      (MARKS 04)

   3. Draw the layered architecture of OSI reference model and write the at least two services provided by each layer of the model.

      (MARKS 07)

      OR

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      Discuss transport layer multiplexing and demultiplexing concepts.
3. 1. What is client server architecture? Explain merits and demerits of it.

      (MARKS 03)

   2. Write a short note on CRC.

      (MARKS 04)

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   3. What do you mean by congestion and overflow? Explain the slow-start component of the TCP congestion-control algorithm

      (MARKS 07)

      OR

      Draw and explain Ethernet header.

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4. 1. How UDP checksum id calculated? Explain it with example.

      (MARKS 03)

   2. Explain TCP segment structure and justify the importance of its field values.

      (MARKS 04)

   3. What is role of DNS (Domain Name Server) in internet?

      (MARKS 07)

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5. 1. Give difference between flow control verses Congestion Control

      (MARKS 03)

   2. Explain layered architecture of TCP/IP model and write service provided by at least two layer of the model.

      (MARKS 04)

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   3. OR

      Give difference between connection oriented and connection less services.

      (MARKS 07)

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6. 1. Differentiate Broadcast and multicast with their functionality.

      (MARKS 03)

   2. Explain IPv4 datagram format and importance of each field

      (MARKS 04)

   3. Discuss parity check for error detection in data transfer.

      (MARKS 07)

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7. 1. Compare TCP and UDP.

      (MARKS 03)

   2. Explain distance vector routing algorithm.

      (MARKS 04)

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   3. OR

      Explain CSMA/CD Protocol

      (MARKS 07)

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8. 1. Differentiate between IPv4 and IPv6.

      (MARKS 03)

   2. Explain Link-State routing algorithm.

      (MARKS 04)

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