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TRANSMISSION ERRORS:
Transmission exceptions may happen due to different causes for example power surges or interference may delete data during transmission. In result of which the bits are deleted or the bit value may be modified.
ERROR CORRECTION AND DETECTION:
To correct and detect errors, frames add additional information, which is
checked by the receiver and inserted by the sender. In this way incorrect data may be
rejected. Also the incorrect data may be accepted and corrected.
PARITY CHECKING:
To find the error there are different functions in which parity checking is also usually used. In parity checking, parity denotes to the number of bits set to 1 in the data item.
There are two kinds:
EVEN PARITY:
In an even parity the no. of 1's in packet would be an even number.
ODD PARITY:
In an Odd parity the no. of in packet bits would be an odd number.
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
Transposition technique
Example : UCSF Medical Center In the year 2002, the University of California, San Francisco (UCSF) Medical Center received an email message from someone who claimed to be a doct
Normal 0 false false false EN-US X-NONE X-NONE
Cost Benefit Analysis (CBA) The common approach for information security controls is economic feasibility of implementation. CBA is begun by evaluating the worth of assets which
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Please see attached file
People,Procedures,Data Asset Identification-Risk Management The human resources, data information and documentation assets are more difficult to identify. People having knowle
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