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BTCS 504 18

This document is an exam paper for a Computer Networks course. It contains instructions for students taking the exam, which is divided into three sections. Section A contains 10 short answer questions worth 2 marks each. Section B has 5 questions worth 5 marks each where students must answer 4. Section C contains 2 questions worth 10 marks each that students must answer. The questions cover topics related to the different layers of the OSI model, protocols, networking concepts, and comparisons of protocols.

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Anurag Davesar
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747 views2 pages

BTCS 504 18

This document is an exam paper for a Computer Networks course. It contains instructions for students taking the exam, which is divided into three sections. Section A contains 10 short answer questions worth 2 marks each. Section B has 5 questions worth 5 marks each where students must answer 4. Section C contains 2 questions worth 10 marks each that students must answer. The questions cover topics related to the different layers of the OSI model, protocols, networking concepts, and comparisons of protocols.

Uploaded by

Anurag Davesar
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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Roll No. Total No.

of Pages : 02
Total No. of Questions : 09
B.Tech. (ECE) (Sem.–6)
COMPUTER NETWORKS
Subject Code : BTCS-504-18
M.Code : 79374
Date of Examination : 16-07-22
Time : 3 Hrs. Max. Marks : 60

INSTRUCTIONS TO CANDIDATES :
1. SECTION-A is COMPULSORY consisting of TEN questions carrying T WO marks
each.
2. SECTION-B contains FIVE questions carrying FIVE marks each and students
have to attempt any FOUR questions.
3. SECTION-C contains T HREE questions carrying T EN marks each and students
have to attempt any T WO questions.

SECTION-A

1. Write briefly :

a. What is the need of presentation layer?

b. List few applications layer protocols.

c. What is Checksum?

d. What is message switching? ,

e. Why do we need RARP?

f. Define BOOTP.

g. What is meaning of reliability in TCP?

h. What is MAC address?

i. Define DDNS.

j. What is IDS?

1 | M- 79374 (S2)-1410
SECTION-B

2. Why do we need multiplexing? Discuss Frequency Division multiplexing.

3. Explain the CSMA/CD protocol used at MAC layer. Does it reduce the number of
collisions?

4. Discuss the functionality of network layer. How logical addressing is done at this layer?

5. Define Congestion. How Stream control Transmission protocol works?

6. Discuss the working of DNS protocol with the help of a suitable example.

SECTION-C

7. Explain the different guided and unguided media used at physical layer for data
transmission.

8. What is sliding window protocol? Discuss the advantages and disadvantages of using
piggybacking.

9. Write a short note on :

a. TCP vs UDP

b. FTP.

NOTE : Disclosure of Identity by writing Mobile No. or Making of passing request on any
page of Answer Sheet will lead to UMC against the Student.

2 | M- 79374 (S2)-1410

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