Download AKTU B-Tech 8th Sem 2016-17 EEC809 Data Communication Network Question Paper

B.TECH.

THEORY EXAMINATION (SEM–VIII) 2016-17

DATA COMMUNICATION NETWORK

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Max. Marks : 100

Note: Be precise in your answer. In case of numerical problem assume data wherever not provided.

SECTION – A

Attempt the following:

1. Which are the three generation of Ethernet?

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2. What are the desired properties of routing algorithm?
3. What are the various causes of Congestion?
4. What are the types and applications of Cryptography?
5. Define Socket? What is its type?
6. Draw and explain simple communication model?

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7. What is the relation between bandwidth and bit rate?
8. What are the advantages of optical fiber over co-axial cable?
9. List the types of IP address?
10. Define Flow control?

SECTION - B

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Attempt any five parts of the following question:

1. Explain Go Back n protocol. What are its limitations?
2. Draw and explain the Frame structure of HDLC?
3. Explain the transmission policy of TCP?
4. Explain in detail IEEE 802.4 with the help of a suitable example?

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5. Explain Distant Vector routing algorithm? What are counts to infinite problem?
6. Explain the following?
   1. Leaky bucket algorithm
   2. User Datagram Protocol (UDP)
7. Explain the header format of TCP? How connection is established in TCP?

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8. Compare the salient features of HTTP and FTP?

SECTION-C

Attempt any two questions of the following:

1. Explain Slotted ALOHA and Pure ALOHA with derivations of their efficiency?
2. Explain the frame format of IPv4? What are the advantages of IPv6 and IPv4?

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3. 1. Describe ATM protocol layers and compare them to the OSI protocol hierarchy
   2. Calculate CRC for the 10 bit sequence 1010011110. Where the generator polynomial is x³ + x + 1.

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