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Q. What is Authentication ?
- Verification of sender's identity.
- Accomplished through a digital signature, which is based on public key encryption/decryption.
- Uses reciprocity of RSA, however secret key is kept by the sender to -sign? the transmission.
Define RIP protocol?
Q. What is Retransmission timer? Retransmission timer if an ACK is received previous to the timer goes off - destroy the timer if the timer goes off before ACK a
Question : (a) Explain the ‘RAD' methodology with a suitable diagram. (b) One of the activities to be performed during Rapid Application Development is Rapid Business Analys
Q. Why it is essential to have layering in a network? Ans: A computer network is a very complicated system. It becomes very hard to implement as a single entity. The layered ap
Recognize the command that configures serial0 for PPP encapsulation Ans) Router(config-if)# encapsulation ppp
Source quench is the process where the destination router, or end internetworking device will "quench" the date from the "source", or the source router. This usually occurs when th
Go Back ( GBN) Go back N ARQ is specific instance of the automatic repeat request protocols in which the sending process continues to send a number of frames specific
Explain how does IGRP work?
QUESTION a) Security is a very crucial component in a Distributed System. Describe three properties of a secure channel. b) During packet transmission, messages are subdivid
What is LRC? In LRC, a block of bits is separated into rows and a redundant row of bits is added to the whole block. It can detect burst errors. If two bits in one data unit ar
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