Download JNTUH (Jawaharlal nehru technological university) MCA (Master of Computer Applications) 3rd Sem (Third Semester) Regulation-R15 2017 August 823AE Computer Networks Previous Question Paper
R15
Code No: 823AE
JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD
MCA III Semester Examinations, August - 2017
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) What is Hamming code? How it is useful in computer networks?
[5]
b) Write the functions of MAC and LLC.
[5]
c) What is optimality principle in routing? Explain briefly.
[5]
d) Describe in detail about tunneling.
[5]
e) Compare TCP and UDP.
[5]
PART - B
5 ? 10 Marks = 50
2.
Describe the layers of OSI reference model and compare it with TCP model.
[10]
OR
3.a)
Explain stop and wait protocol in detail.
b)
Explain, How flow control is achieved in data link layer?
[5+5]
4.
Explain in detail about ALOHA protocol.
[10]
OR
5.a)
Describe MAC protocol operations on a token ring.
b)
Give a note on frame formats of token ring.
[5+5]
6.a)
What is flooding and describe reliable flooding.
b)
Describe hierarchical routing.
[5+5]
OR
7.
Explain in detail about link state routing algorithm.
[10]
8.
Describe Address resolution protocol in detail.
[10]
OR
9.a)
Describe dynamic host congestion protocol in detail.
b)
Write the services of transport layer.
[5+5]
10.
Describe TCP header in detail.
[10]
OR
11.
Write short notes on
a) TELNET
b) SMTP protocol.
[5+5]
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This post was last modified on 17 March 2023