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]
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This post was last modified on 17 March 2023