BOARD DIPLOMA EXAMINATION,
(C-09)
OCT/NOV-2012
DECE.-VI SEMESTER
EXAMINATION
DATA COMMUNICATION COMPUTER
NETWORKS
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.
Write a short note on lightwave transmission
2.
Define baud rate.
3.
Write any six applications of WAP.
4.
Write a short note on store and forward switch
mechanism
5.
Write the advantages and disadvantages of packet
switching
6.
Define intranet.
7.
State the functions of ISP.
8.
List the impotant features of TCP.
9.
Write a short note on remote login
10.
What is the purpose of email? List any three
email service providers
Part-b
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.
Explain the following with cross-sectional
diagram and list applications of each: (a) coaxial cable (b) optical fiber
cable
12.
(a) distinguish between analog and digital
transmissions (b) explain serial and parallel communications.
13.
Explain the following network topologies and
write the advantages and disadvantages of each topology: (a) star (b) ring
14.
Draw the OSI 7- layer model and write the
functions of each OSI layer.
15.
Write briefly about DSL and Cable modem
16.
Describe the concepts of internetworking.
17.
Explain File Transfer Protocol (FTP) in web
applications
18.
Describe the web browser architecture
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