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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
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How to protect computer Hardware by threats The first component in the computer system vulnerable to attacks or threats, and most important to be protected, is the hardware.
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Name the two commands that save the running-config to a TFTP server Ans) Two commands are:- a) copy running tftp b) write network
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Cannot print from Computer recently
The FORALL Statement The FORALL statement allows for more common assignments to sections of an array. A FORALL statement has the general form. FORALL ( triplet
The disadvantages and advantages of Private and Public networks are shown in the table below:
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