Download JNTUH MCA 3rd Sem R17 2021 July-August 843AB Computer Networks Question Paper

Download JNTUH (Jawaharlal nehru technological university) MCA (Master of Computer Applications) 3rd Sem (Third Semester) Regulation-R17 2021 July-August 843AB Computer Networks Previous Question Paper

R17

Code No: 843AB















JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

MCA III Semester Examinations, July/August - 2021

COMPUTER NETWORKS

Time: 3 Hours











Max.Marks:75

2021

Answer any five questions

All questions carry equal marks

- - -


1.

Explain the TCP/IP reference model with neat diagram.





[15]





2.a) Compare the optical fiber over copper wire.

b) Explain Go ? Bank ? N sliding window protocol with clear illustrations.

[7+8]


3.a) What is pure ALOHA and slotted ALOHA? Explain.

b) Discuss the stop and wait ARQ protocol in detail.







[7+8]



4.

Write a short note on



a) 1-persistent CSMA



b) Non-persistent CSMA



c) P-persistent CSMA.













[5+5+5]


5.a) Compare Virtual-Circuit and Data gram Networks.

b) Draw and explain the header format of IPv6.









[7+8]



6.a) Explain the five parts of the link state routing with an example.

b) Discuss Dynamic Host Configuration Protocol and Address Resolution Protocol. [7+8]



7.a) Differentiate between UDP and TCP.

b) Explain Congestion control algorithms in detail.









[7+8]


8.a) Differentiate between FTP and HTTP.

b) Give a brief explanation about Electronic mail.









[7+8]




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