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Question:
Human telephone conversations are characterized by irregular pauses, alternating with irregular bursts of speech.
In contrast, communication via computers is characterized by relatively long pauses between short bursts of transmission.
i. How does message switching operate?
ii. Explain briefly the concept of circuit switching. Give an example of circuit switching.
iii. Why is circuit switching preferred over packet switching in voice communications?
What is Authentication/confirmation? How it is different from the Authorization/approval? Explain in brief different authentication protocols along with their merits and demerit
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A half-duplex (HDX) system gives communication in both directions, but only one direction at a time. Hardly, once a party stats receiving a signal, it must need for the transmi
(a) Show four Network Security attacks. How do they compromise security? (b) In what ways do the following devices or services contribute to security: (i) Firewall (ii) In
Detect each visit to www.google.com that is made by the machine. o Send an alert when an activity relating to network chat is detected. o Send an alert when an attempt is made for
discuss the merits and demerits of computers freezing
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What do you understand by cryptanalysis? Discuss about the transposition ciphers substitution cipher, and onetime pads. The messages which are intended to transmit secretly and
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