Download JNTUH MCA 3rd Sem R15 2019 April-May 823AE Computer Networks Question Paper

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