Download JNTU OR MCA 3-semester COMPUTER COMMUNICATION NETWORKS December 2008 Exam Question Paper

Code No: OR-32-MCA
M.C.A.-III Semester Supplementary Examinations, December 2008.
COMPUTER COMMUNICATION NETWORKS
Time:3hours Max.Marks.60
Answer any FIVE questions
All questions carry equal marks

1.a) Discuss about the Transmission media.
b) What is Asynchronous Transfer Mode (ATM) ? With a neat diagram explain the ATM reference model.

2.a) Explain about the Error detecting codes.
b) Write about various Carrier sense multiple access protocols.

3.a) What is Routing? Explain how link state routing algorithm works.
b) Explain how congestion control is handled in Datagram subnets.

4.a) Explain the IPv4 header in detail.
b) Write about Open Source Path First(OSPF) and Border Gateway Protocol (BGP).

5.a) Explain the elements of transport protocols.
b) Write about the TCP segment header.

6.a) Write about security sockets layer (SSL) and Transport layer security (TLS).
b) Explain how IP security (IPSec) provides network security.

7.a) Discuss about e-mail architecture and services.
b) What is a Web page? Explain how a web page can be written in HTML.

8. Write short notes on any THREE of the following:
a) Token ring
b) Load shedding
c) Quality of service
d) Cryptographic algorithms.

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