COMPUTER COMMUNICATION AND NETWORKS-OCTOBER-2008

FOURTH SEMESTER DIPLOMA EXAMINATION IN ENGINEERING/TECHNOLOGY-OCTOBER, 2008

COMPUTER COMMUNICATION AND NETWORKS

PART-A

(Maximum marks:15)

v  Answer the following questions in one or two sentences:

1.Define analog data.

2.Define amplitude of a signal.

3.Define multiplexing.

4.Define distortion.

5.Define data transparency.

6.Define modem.

7.Define a cell.

8.Write the IEEE standard for Token Ring.

9.Define gateway.

10.Define hypertext.

PART-B

(Maximum marks:60)

(Answer one full question from each unit)

Unit-1

v  Explain communication tasks.(12)

         

OR

v  Explain ISO OSI model with the help of a block diagram.(12)

Unit-2

v  Write a note on asynchronous data transmission.(12)         

OR

v  Write a note on optical fibre.

UNIT-3

v  With an example illustrate modulo-2 arithmetic of error detection scheme.(12)

OR

v  (a)Write a note on character oriented protocol.(6)

          (b)Write a note on go-back-in ARQ.(6)

UNIT-4

v  Write a note on ISDN channels.(12)

OR

v  Write a note on open-loop congestion and closed –loop congestion control.(12)

UNIT-5

v  Write a note on data encryption standard.(12)

OR

v  Explain in detail HTTP.(12)

        

Please Give Us Your 1 Minute In Sharing This Post!

SOCIALIZE IT →

Tweet

FOLLOW US →

SHARE IT →

Powered By: BloggerYard.Com