ISM303 – COMPUTER NETWORKS

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Master of Business Administration - MBA Semester 3

ISM303 – COMPUTER NETWORKS

Set 1

Qus:1 What is a Router? What is a Bridge? Differentiate between the two.

a) Definition of Router                                  2

b) Definition of Bridge                                  2

c) Difference between Router and Bridge.             6

Answer: Router

A router is the most intelligent yet expensive device as compared to hubs and switches; however, its working is somewhat dissimilar, switches are perfect for communication between

Qus:2 Write Short notes on:

a) Connectors                                                2

b) PC Cards                                         3

c) Hubs                                                2

d) Switch                                            3

Answer: Connectors

Connectors are devices that join two network hardware components together and are used for varied purposes such as audio/video, internetworking, power transfer, etc. In computer

Qus:3 Explain the Elements of Communication System. Elaborate on Modulation/Demodulation (Modem)

a) Explanation of the Elements of Communication System          4

b) Elaborate on Modulation/Demodulation (Modem)                 6

Answer: Elements of Communication System

The data exchange between computer and its components by means of protocols and hardware

Set 2

Qus:1 Explain LAN (Local Area Network). Elaborate its advantages, characteristics & architecture.

a) Explanation of LAN                       2

b) Advantages of LAN                       3

c) Characteristics of LAN                   2

d) Architecture of LAN                      3

Answer: When several computers are connected by means of hardware and software in a small range then

Qus:2 Define Internet. What are its uses?

a) Explanation of Internet                3

b) Uses of Internet                             7

Answer: Internet is a global system that can be used for sharing information, providing worldwide

Qus:3 Cryptography is the process of writing the cipher text. Explain its uses and goals.

a) Uses of Cryptography                               5

b) Goals of Cryptography                             5

Answer: Cryptography is the process of writing the cipher text. In cryptography, a plain text is converted into the cipher text (refers to the secret text) by using some mathematical functions, so that other users on the network cannot read the information. Cryptography plays an

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