BE 512502-6CPT0023-6C0092 Data Communication & Computer Networks Sathyabama University Nov 2010

Register Number

                               

SATHYABAMA UNIVERSITY

(Established under section 3 of UGC Act, 1956)

Course & Branch: B.E/B.Tech-CSE/IT/P-IT

Title of the Paper: Data Communication & Computer Networks

Max. Marks: 80

Sub. Code: 512502-6CPT0023-6C0092                 Time: 3 Hours

Date: 18/11/2010                                                    Session: FN

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PART - A                (10 X 2 = 20)

Answer ALL the Questions

1.     What are the various topologies used in the computer networks?

2.     List out the various layers is OSI Model.

3.     Differentiate between parallel and serial communication.

4.     What is an Error correction?

5.     Define Multiplexing.

6.     What is connection oriented and connection less services? Give examples.       

7.     How does ISDN is being accessed?

8.     What is ATM?

9.     Represent any two routing algorithms.

10.   What is World Wide Web?

PART – B                       (5 x 12 = 60)

Answer All the Questions

11.   Explain the various categories of computer networks. 

(or)

12.   Explain the OSI model.

13.   Explain any two interface standards of DTE/DCE.      

(or)

14.   Explain the guided and unguided mediums with neat sketch.

15.   Explain the process of Data link layer.

(or)

16.   Write short notes on:

(a) Project 802

(b) Token Bus

(c) Circuit Switching.

17.   With neat sketch explain the ISDN layers.   

(or)

18.   Explain the ATM protocol with an example.

19.   Explain any one routing algorithm.

(or)

20.   Explain the network layer of TCP/IP network.

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