MCA MAGADH UNIVERSITY QUESTION (2015-2018) (Semester-III ) Computer Communication Networks

MCA MAGADH UNIVERSITY QUESTION (2015-2018) (Semester-III ) Computer Communication Networks

                                                                         2015-2018
                                                                       Full Marks: 80
                                                                       Time: 4 hours
                                                        The question are of equal value
                                                           Answer any five questions

1. Compare ISO- OSI and TCP/ IP models of Networks.

2. Discuss different digital - analog - digital modulation methods.

3. What is line encoding? Discuss different line encoding methods.

4. What are Random Access Protocols? Discuss the CSMA/ CD in detail. Write Abramson's analysis.

5. What are reservation and priority based access protocols ? Discuss the concept of token passing.

6.  What is  Higher Data Link control (HDLC) protocol ? Discuss the different models of HDLC.

7.  Discuss the concept of routing? what are the different routing protocols used in Internet?

8. Discuss IPV-4 header format.

9. Discuss different layers of ISO- OSI reference model

10. Write short notes on the following:
      (a) stop and wait ARQ
      (b) IMAP & POP
      (c) Routers
      (d) Multiplexing