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CSMA/CD - A Simple Definition
Time out The protocols name Go Back N is derived from the sender behaviour in the presence of lost or overly delayed packets. A timer will again be used to recover
Example of transport layer are:- a) TCP is connection oriented. b) UDP is connectionless
Q. Focus of Reliability Control? - Implementation of the OSI model puts emphasis on providing a reliable data transfer service while the TCP/IP model treats reliability as an e
Consider the procedure described for estimating average delay di. Suppose that u=0.1. Let r1-t1 be the most recent sample delay, let r2 -t2 be the next most recent sample delay
Reliable data transfer over a channel bit error rdt : 20 A more realist model of the underlying channel is one in which bits in packet may be computed. Such bit erro
Deadlock Avoidance To avoid deadlocks two types of strategies are used: 1) Static prevention: It uses V and P operators and Semaphores to allocate and deallocate shared res
Q. What is an Error? At any time bits flow from one point to another they are subject to unpredictable changes because of interference The interference is able to change the
Why it is necessary to have layering in a network? A computer network is a very complex system. It becomes very difficult to execute as a single entity. The layered approach di
modern technology in world of 21 century
Q. Describe Flow and Error Control Mechanisms? Flow and Error Control Mechanisms - Stop and Wait ARQ - Go-Back ARQ - Selective Repeat ARQ
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