MCA MAGADH UNIVERSITY QUESTION, (2016-2019) (Third semester) Computer Communication Networks

MCA MAGADH UNIVERSITY QUESTION, (2016-2019) (Third semester) Computer Communication Networks

                                                                             2016-2019
                                                                          Time: 4 hours
                                                                         Full Marks: 80
                                             Candidates are required to give their answers in their
                                                               Own words as far as practicable.
                                                             The questions are of equal value.
                                                                Answer any five questions.

1. Why digital / Live encoding is used in Digital Transmission? Describe any four Digital / Line encoding methods.

2. What are MODEMS? Describe various modulation methods.

3. Discuss the ISO-OSI reference method model in Detail.

4. Describe the TCP header in detail.

5. Compare between Link State Routing & Distance Vector Routing.

6. Write short notes of any four of the following:
    (a) Bridge
    (b) Gateway
    (c) Repeater
    (d) CODEC
    (e) Multiplexer
    (f) Amplifier

7. What are the difference types of impairments encovatered in communications.

8. Discuss the evolution of INTERNET with its important protocols.

9. Discuss CSMA / CD Access Protocol.

10. Explain the concept of 'Network Security'.