BOARD DIPLOMA EXAMINATION,
(C-09)
OCT /NOV-2011
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. Define
data communication?
2. Differentiate
anaog and digital transmission.
3. State the
need for protocols in computer networks
4. List the
OSI 7 layers.
5. Write the
applications of WAP.
6. Explain
the point to point protocol.
7. What is
the role of Gateways?
8. What is
web application
9. 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.
10. Explain about baud, rate, simplex, half duplex and full duplex
communication.
11. Explain Shannon’s capacity and compare the characteristics of
various guided media?
12. (a) distinguish between circuit switching and packet switching.
(b) explain the working of token ring network.
13. (a)discuss cut through, store and forward and adaptive switch
mechanism. (b)explain the Bluetooth technology.
14. (a) explain about ARPANET and WWW. (b) explain the internal
architecture of ISP
15. (a) what are the various layers of TCP/IP? (b)explain how the TCP
connects various systems
16. (a) explain the purpose of proxy server. (b) explain the FTP in
web application in detail
17. (a) describe the working of web browser. (b) explain the DNS name
space
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