MCA MAGADH UNIVERSITY QUESTION (2004-2007) (Third semester) Computer Communications Networks

MCA MAGADH UNIVERSITY QUESTION (2004-2007) (Third semester) Computer Communications Networks

                                                                          2004-2007
                                                                      Full marks: 80
                                                                      Time: 4 hours
                                                            Answer any five questions

1. a) Define Network Topology ? Describe the various network topologies with their advantages and disadvantages.
    b) Define Modulation & Demodulation. Discuss the various Digital to analog conversion methods.


2. What is a Protocol ? Describe the two subgroups of Data- link protocol?

3. Describe HDLC modes of transmission ? Also describe its frame format.

4. Describe the common base band implementation of Ethernet.

5. Discuss the functions of Repeaters, rules & Bridges.

6. Write short notes on any three of the following:
    a) Packet Switching
    b) CSMA / CD
    c) FTP
    d) Multiplexing
    e) NOS ( Networking operating system)

7. Discuss IEEE 802 standards.

8. Discuss the three different level of address in an internet using TCP/ IP protocols.

9. What are the Route discovery Protocols? Give example

10.  Some parts of address space in class A, B  and C are used  for special addresses, what are they ? Discuss.