B.E-B.E Electronics and Tele-Communication Engineering Data Communication Networks(Sathyabama University, Chennai, Tamil Nadu-2010)
Friday, 23 August 2013 03:11Duraimani
(Established under section 3 of UGC Act,1956)
Course & Branch :B.E - ETCE
Title of the Paper :Data Communication Networks Max. Marks :80
Sub. Code :525605/625603 Time : 3 Hours
Date :03/05/2010 Session :FN
PART - A (10 x 2 = 20)
Answer ALL the Questions
1. Define protocol with respect to computer networks.
2. What is the main function of a modem in data communication?
3. What is flow control?
4. What is the level of reliability provided by simple party scheme in error detection?
5. Define internet work.
6. What is the function router in the internet?
7. Define multiplexing.
8. Mention any four QoS metrics.
9. Distinguish between FTP and TFTP protocols.
10. List the two types of DNS messages.
PART – B (5 x 12 = 60)
Answer All the Questions
11. Explain the structure of fiber optic cable and explain the principles involved in transmission of data through fiber optic cable with neat diagram.
(or)
12. Explain the OSI reference model.
13. Explain the data link layer in Internet and HDLC.
(or)
14. Explain any one error detection and correction mechanism with suitable example.
15. Explain the flooding, distance vector routing and hierarchical routing.
(or)
16. Explain the network layer in the internet and IP addressing.
17. Explain the TCP header and working of TCP protocol.
(or)
18. Draw UDP header and explain its each field.
19. Explain the architecture, resolving of domain names and other services provided by DNS.
(or)
20. Explain the architecture of client-server interaction in fetching the web pages and HTTP of World Wide Web.
| Earning: ₹ 3.02/- |
