BOARD DIPLOMA EXAMINATION, (C-09)
MARCH /APRIL-2009
DECE.-VI SEMESTER EXAMINATION
DCCN
TIME: 3
Hours]
[Total Marks :100]
PART - A
INSTRUCTION: (1)
ANSWER ALL QUESTION AND EACH QUESTION
CARRIES 4 MARKS
(2) ANSWER SHOULD BE BRIEF AND
STRAIGHT TO THE POINT AND SHALL NOT EXEED
FIVE SIMPLE SENTENCES
1. State the need for data
communication networking.
2. Write any four
differences between serial and parallel communication.
3. Distinguish between
circuit switching and packet switching.
4. Write applications of
wireless application protocol.
5. Differentiate between a
repeater and a bridge.
6. Briefly explain the
point to point protocol.
7. What are the functions
of ports and sockets.
8. What is meant by UDP?
State its use.
9. What is the role of DNS
server?
10. Briefly explain the
remote login process.
Instructions
: (1) Answer any five questions and each question carries 12
marks.
(2) The answers should be comprehensive and the criteria for
valuation is the content but not the length of the answer.
11. (a) define data communications. (b) explain the Shannon capacity
and compare the characteristics of various transmission media.
12. (a) explain the topology and technology of WLAN. (b) explain the
Ethernet frame format.
13. (a) explain the working of
FDDI.. (b)
14. (a) explain the role of gateways in Internet working process (b)
describe the internal archintecture of ISP.
15. (a) explain in detail about FRAME relay protocol. (b) explain the
IP addressing and its classes.
16. (a) describe the different layers of TCP/IP. (b) explain how the
TCP connects various systems
17. (a) describe POP server and SMTP server. (b) explain the file
transfer operation in web applications.
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