Download JNTUH (Jawaharlal nehru technological university) MCA (Master of Computer Applications) 3rd Sem (Third Semester) Regulation-R15 2019 April-May 823AE Computer Networks Previous Question Paper
R15
Code No: 823AE
JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD
MCA III Semester Examinations, April/May - 2019
COMPUTER NETWORKS
Time: 3hrs
Max.Marks:75
Note: This question paper contains two parts A and B.
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) Discuss flow control technique in data link layer.
[5]
b) Write the assumptions for dynamic channel allocation.
[5]
c) Write the services of network layer provided to transport layer.
[5]
d) Explain the primitives of transport layer.
[5]
e) Write the features of TCP.
[5]
PART - B
5 ? 10 Marks = 50
2.
Explain OSI reference model of computer network with suitable diagram and discuss
about role of each layer of OSI reference model.
[10]
OR
3.a)
Discuss about sliding window protocol for noisy channel.
b)
Write about Go-back-N protocol.
[5+5]
4.a)
Explain learning bridges with a neat sketch.
b)
Elaborate bit map protocol.
[5+5]
OR
5.
Explain persistent and non persistent CSMA protocols.
[10]
6.a)
What is virtual circuit? Explain it briefly.
b)
Give a detailed note on flooding.
[5+5]
OR
7.
Explain the following routing techniques.
a) Broadcasting routing
b) Distance vector routing.
[5+5]
8.
Explain in detail about ARP protocol.
[10]
OR
9.
Explain steps for connection establishment and releasing in transport layer.
[10]
10.a) Explain UDP message queuing technique.
b) Describe HTTP message formats.
[5+5]
OR
11.
Write notes on
a) POP
b) TCP sliding window.
[5+5]
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This post was last modified on 17 March 2023