GTU Data Communication & Networking - June 2014 Exam Question Paper

GTU Information Technology (Semester 4)
Data Communication & Networking
June 2014

Total marks: --
Total time: --

INSTRUCTIONS
(1) Assume appropriate data and state your reasons
(2) Marks are given to the right of every question
(3) Draw neat diagrams wherever necessary

1 (a) Draw the layered architecture of OSI model and explain the function of each layer of OSI model.

7 M

1 (b) Explain LAN,MAN in detail.

7 M

2 (a) What do you mean topology? Explain bus and star topology.

7 M

2 (b) Identify the five components of data communication system. Differentiate between half duplex and full duplex transmission modes.

7 M

2 (c) Explain TCP/IP model in detail.

7 M

3 (a) Explain Amplitude shift keying,Frequency shift keying and Phase shift keying for digital to analog conversion.

7 M

3 (b) What are different transmission impairments? Differentiate between Circuit switched network and Packet switched network.

7 M

3 (c) Explain Analog Modulation, Frequency Modulation for analog to analog Conversion.

7 M

3 (d) What is Multiplexing? Explain Time division multiplexing and Frequency division multiplexing.

7 M

4 (a) Explain CRC with example.

7 M

4 (b) What is routing algorithm? List different types of routing algorithm. Explain distance vector routing algorithm with example.

7 M

4 (c) What should be minimum hamming distance to detect two bit error? Explain hamming code method for error correction with example.

7 M

4 (d) How do guided media differ from unguided media? Explain guided media in Detail.

7 M

5 (a) Explain FDDI and Token bus in detail.

7 M

5 (b) Explain following connecting devices.
1) Hub 2) Link layer switches 3) Router.

7 M

5 (c) List different kinds of Line coding schemes. Explain any two in detail.

7 M

5 (d) Explain Shannon capacity and Nyquist theorem with example.

7 M

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