Kuvempu University 2008 B.Sc Information Technology DATA COMMUNICATION - Question Paper

II Semester B.Sc. (IT) Examination, November 2008
(CBCS Scheme)
Directorate of Distance Education Course
DATA COMMUNICATION
Time: three Hours Max. Marks: 100
Instructions: 1) Part A ans all the ques..
2) Part B ans any 5 full ques..
PART - A
ans all the ques..
1. describe source and destination. 2
2. describe transmission system. 1
3. describe receiver. 1
4. What is flow control. 1
5. describe frame relay. 1
6. describe frequency and bandwidth. 2
7. describe noise and fault rate. 2
8. What is ISDN ? 1
9. What is interference? 1
10. What is periodic signal? 1
11. elaborate modems? 1
12. What is multiplexing ? 1
13. What is circuit switching? 1
14
14. What is frame synchronization? 1
15. Expand CRC. 1
16. Differentiate Asynchronous Balanced Mode (ABM) and Asynchronous Response
Mode (ARM). 2
17. What is HDLC ? 1
18. What is ARQ protocol? 1
19. What is FDDI ? 1
20. What is CSMA/CD? 1
21. What is a bridge? 1
PART - B
ans any 5 full ques..
1. a) With neat figure discuss data communication model. 7
b) Bring out the difference ranging from wide area network and local area network. 8
2. a) Write a note on ISDN and broad band ISDN. 7
b) With neat diagram discuss OSI protocol architecture. 8
3. a) What is the difference ranging from analog repeater a digital repeater? discuss
every 1 with example. 7
b) Briefly discuss cross bar switch and multistage switch. 8
4. a) Write a note on wave length division multiplexing. 7
b) Briefly discuss cross bar switch and multistage switch. 8
5. a) Bring out the difference ranging from stop and wait ARQ and Go-Back-N ARQ. 7
b) discuss sliding - window - flow control. 8
6. a) Briefly discuss characteristics and frame structure of HDLC. 7
b) With neat diagram discuss fault detection system using check bits. 8
7. a) Briefly discuss MAC frame format. 7
b) With neat diagram discuss optical fiber bus taps. 8
15
8. a) With neat diagram discuss bridge interconnecting 2 LANS and also
functions of a bridge. 7
b) elaborate LLC servicer ? discuss. 8
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Earning:   Approval pending.