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Question 1:
(a) Explain what is meant by circuit switching?
Give its main shortcoming and explain its relevance in telephone systems.
(b) Outline the differences between Circuit and Packet switching.
(c) What are the different transmission states? Explain.
Question 2:
(a) Compare Caching and Remote Services.
(b) What is a worm?
Give a brief explanation about the Morris Internet Worm.
(c) Write a short note on program threats.
What is Microwave? Microwaves have been used in data communications. Microwave has a higher frequency than radio waves and thus can handle larger amounts of data.
Source to Destination Data Transfer - Datagram approach - Each packet is treated independently. - Every pkt will take its own path to reach the destination. - There i
Explain the concept of router-root path The mean router-router path is double the mean router-root path. Number levels of tree with root as 1 and the deepest level as n. The pa
Explain how does IGRP work?
Explain Asymmetric encryption
What are reasons behind using layered protocols Reasons for using layered protocols, using them leads to breaking up design problem into smaller more manageable pieces and lay
What are the features of star and ring topology The three networks have following features: star: best case is = 2, average case is = 2, worst case is = 2 ring: best case
Question 3:4 By experimentation, work out the lowest SNR, under which 4 users can si- multaneously communicate, without error, via this system. For SNR, simply report the largest v
Data link layeris called as error detection layer
Q. Explain Multipurpose Internet Mail Extensions? - The Multipurpose Internet Mail Extensions is an extension of SMTP that allows the transfer of multimedia and other non-ASCII
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