Wednesday, January 19, 2022

Dr.A.P.J.Abdul Kalam University BE V SEM ALL BRANCH Data Communication [IT-501] Dec - 2020 Question Paper

Dr.A.P.J.Abdul Kalam University

Bachelor of Engineering

Fifth Semester Main Examination, Dec-2020

Data Communication [IT-501]

Branch - IT

Time: 3:00 Hrs Max Marks 70

Note : 1. Attempt any five questions out of eight.

2. Each question carries equal marks.

Q.1 (a) Explain LAN, WAN and MAN

(b) Compare FDM, WDM and TDM

Q.2 (a) Explain transparent bridge.

(b) What is the role of RARP and BOOTP?

Q.3 (a). Explain STAR, BUS and RING topology in detail.

(b) Distinguish between IPv4 and IPv6.

Q.4 (a) What is routing? Explain.

(b) Define packet. Explain packet switching.

Q.5 (a) Explain the three important functions of a Network Layer.

(b) What is the role of SMTP and HTTP?

Q.6 (a) Write in brief about digital signature.

(b) What is CSMA? Explain working of CSMA/CD.

Q.7 (a) Explain in detail the classification of transmission model.

(b) Compare OSI reference model with TCP/IP reference model.

Q.8 Write short notes on following:

i) DNS

ii) Firewall

iii) HDLC

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