Download JNTUH MCA 3rd Sem R15 2017 August 823AE Computer Networks Question Paper

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]





---oo0oo---

This post was last modified on 17 March 2023