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Computer Networks Question banks for ece





CS 2363 — COMPUTER NETWORKS
ANNA UNIVERSITY QUESTION BANKS FOR ECE,
 ECE FIFTH, COMPUTER NETWORKS, CSE FIFTH,
 QUESTION BANKS, 
QUESTION PAPERS, 
(Regulation 2008)
Time : Three hours Maximum : 100 marks
Answer ALL questions.
PART A — (10 × 2 = 20 marks)
1. Define a computer network.
2. What is FDDI?
3. What is internet working?
4. What is IPV6?
5. What is queuing?
6. Define congestion.
7. Define cryptography.
8. What is PGP.
9. What is HTTP?
10. List multimedia applications.

PART B — (5 × 16 = 80 marks)
11. (a) (i) Describe network architecture in detail. (8)
(ii) What is Ethernet? Explain in detail. (8)
Or
(b) (i) What is error detection? Explain with examples. (8)
(ii) Write a note on bridges. (8)
12. (a) (i) Explain in detail about internet control message protocol. (8)
(ii) Describe any one routing algorithm. (8)
Or
(b) (i) What is dynamic host configuration protocol? Explain in detail.
(8)
(ii) Write a note on addressing. (8)
13. (a) (i) Explain the user datagram protocol (UDP) in detail. (8)
(ii) What is flow control? Explain in detail. (8)
Or
(b) (i) Explain in detail the transmission control protocol. (8)
(ii) Write a note on congestion avoidance mechanisms. (8)
14. (a) (i) Write a note on JPEG, MPEG and MP3. (8)
(ii) What is IP security? Explain in detail. (8)
Or
(b) (i) Explain fire walls in detail. (8)
(ii) Explain the basic principles of authentication. (8)
15. (a) (i) Describe domain name system in detail. (8)
(ii) Write a note on e-mail. (8)
Or
(b) (i) Explain simple network management protocol in detail. (8)
(ii) Describe in detail the file transfer protocol (FTP). (8)




CS2361 , CS2363 Computer Networks - QUESTION BANK





ME /M.Tech



UNIT-I PHYSICAL LAYER
PART-A ( 2 Marks)

1. What are the five important components of data communication?
2. List two advantages of layering principle in computer networks.
3. With the example explain half duplex communication.
4. Mention any two functions of session layer.
5. Name four topologies of computer networks.
6. Suggest two points to improve the performance of network.
7. With the example explain half duplex communication.
8. Define protocol.
9. Differentiate guided and unguided media.
10. What is the Null modem?
11. Define Topology.
12. Define standards.
13. What are the design factors for transmission media?
14. Difference between Guided media and un guided media.
15. Define line coding.
16. What are most popular modems?
17. Define network.
18. What are the criteria for networks for networks?
19. Define point to point and Multi point.
20. What is DSL
PART-B
1. Explain the OSI-ISO model I of computer with neat diagram. (16)
2. Distinguish between Point to Point links and multi-point links
with relevant diagram. (16)
3. (i) compare connection oriented and connection less service. (8)
(ii) Differentiate Guided media and un guided media. (8)
4. Write shot notes on
a. TCP/IP protocol suite(4)
b. Networks Model(4)
c. datagram network(4)
d. Virtual circuit network(4)
5. Perform a comparative study between the ISO-OSI model and TCP/IP reference
model. (16)
6.Explain how cable TV used for data transfer?
7.Explain different switched networks

UNIT-II DATA LINK LAYER
PART-A ( 2Marks)

1. Define framing?
2. What is byte stuffing?
3. Write the importance of CRC in the network.
4. Sketch the Manchester encoding for the bit steam 0001110101.
5. Name the protocols used for CSMA
6. Wireless network and mobile networks are not identical explain
7. What is importance of hamming distance? What is Manchester Encoding?
8. What is mean by count to infinity problem?







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