M.C.A DEGREE EXAMINATION
COMPUTER NETWORKS
SECOND YEAR - SECOND SEMESTER
GUESS PAPER

(Effective from the admitted batch of 2000 - 2001)

Time: Three Hours
Maximum: 75 Marks

First Question is compulsory
Answer any FOUR from the remaining questions

All questions carry equal marks.
Write all bits of the first question at one place.

1.
a. Difference between LAN and WAN
b. Various guided Media
c. ALOHA
d. SNMP
e. Data grams
f. Token

2. Write in detail about ISO OSI and TCP/IP Models. What are the differences between them?

3.
a) Describe advantages and disadvantages of a bridge. (10)
b) Write a short note on Transparent Bridge (5)

4.
a) Describe major components and modes of operation of CSMA/CD Bus Network. (10)
b) Describe the function of LLC Sublayer (5)

5.
a. Write a note on Token Bucket Algorithm
b. Write the differences between UDP and TCP

6. Write a note on various congestion control strategies

7. Explain Reliable Stream Services and Protocol Operations

8. Write about various Data Encryption Techniques