Download JNTUH MCA 3rd Sem R17 2019 December 843AB Computer Networks Question Paper

Download JNTUH (Jawaharlal nehru technological university) MCA (Master of Computer Applications) 3rd Sem (Third Semester) Regulation-R17 2019 December 843AB Computer Networks Previous Question Paper


R17

Code No: 843AB















JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

MCA III Semester Examinations, December - 2019

COMPUTER NETWORKS

Time: 3hrs













Max.Marks:75

Note: This question contains two parts A and B.



S Part A is compulsory which carries 25 marks. Answer all questions in Part A. Part B

consists of 5 Units. Answer any one full question from each unit. Each question carries
10 marks and may have a, b, c as sub questions.



PART - A

















5 ?5 Marks = 25



1.a) Explain briefly about design issues for layers in computer network.



[5]

b) What is bridge? What are the uses of bridges in computer network?



[5]

c) What is flooding? Explain it briefly.











[5]

d) Write the services of transport layer.











[5]

e) What is HTTP protocol? Describe its feature and header.





[5]



PART - B

















5 ? 10 Marks = 50



2.

Explain TCP-IP reference model for computer network and compare it with OSI
reference model.

















[10]

OR

3.a)

Compare PAN, LAN and WAN.

b)

What are fiber optics media? Explain its advantages and compare with other guided
media.



















[5+5]


4.a) Explain about Hamming code with an example.
b)

Give a note on wireless LANs.













[5+5]

OR

5.

What is simplex stop and wait protocol? Explain it for error free and noisy channel.[10]


6.a)

Explain design issues of network layer.

b)

Write about packet fragmentation.











[5+5]

OR

7.

Elaborate congestion avoiding techniques in network layer.





[10]


8.a)

Write the feature TCP protocol.

b)

Explain Connection establishment technique in TCP.







[5+5]

OR

9.a)

Explain Performance issues of TCP.

b)

Describe Real Time Transport protocol.











[5+5]


10.a) Describe Session Initiation protocol.
b) Explain the features of JPEG video compression format.





[5+5]

OR

11.

Write notes on



a) Cookies



b) Role of DNS in computer network.





[5+5]



---ooOoo---


This post was last modified on 17 March 2023