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Error Detecting Code - Parity bit:
The general idea for achieving error detection and correction is to add some redundancy (i.e., some extra data) to a message, which receivers can use to check consistency of the delivered message, and to recover data determined to be erroneous. An error-detection scheme may be combined with a system for retransmissions of erroneous data
A parity bit is a bit that is added to a group of source bits to ensure that the number of set bits (i.e., bits with value 1) in the outcome is even or odd. It is a very simple scheme that can be used to detect single error in the output.
Fig. Transmit data using a parity bit
Can you describe circuit level gateway?
State some Security Models The first and foremost thing one needs to do is to chalk out a security plan and policy based on any security model. The term security policy shall
Q. Describe the Class C Addresses? The initial three octets are the network number as well as the last octet is the host number 2096896 blocks used for assignment to o
Illustrate the Bellman-Ford algorithm The Bellman-Ford algorithm uses only on information from its neighbours and knowledge of its link costs, to update it costs and paths. Dij
Along any transmission path from a given source to a given destination, a group of virtual circuits can be grouped together into what is known as path.
State about the international standardization There are many examples, certainly. Some systems for which there is international standardization include compressed disc players
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Path Overhead It is part of SPE and contain followings information: Performance monitor of synchronous transport , signal , path , track ,parity ,checks, and path status.
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