Q1. Part-1. Explain the following: If F is an error-detection function, either internal or external use will provide error-detection capability. If any bit of the transmitted message is altered, this will be reflected in a mismatch of the received FCS and the calculated FCS, whether the FCS function is performed inside or outside the encryption function. Some codes also provide an error-correction capability. Depending on the nature of the function, if one or a small number of bits is altered in transit, the error-correction code contains sufficient redundant information to determine the errored bit or bits and correct them. Clearly, an error-correction code will provide error correction capability when used external to the encryption function. Will it also provide this capability if used internal to the encryption function?
Q1. Part-1. Explain the following:
If F is an error-detection function, either internal or external use will provide error-detection capability. If any
bit of the transmitted message is altered, this will be reflected in a mismatch of the received FCS and the
calculated FCS, whether the FCS function is performed inside or outside the encryption function. Some
codes also provide an error-correction capability. Depending on the nature of the function, if one or a small
number of bits is altered in transit, the error-correction code contains sufficient redundant information to
determine the errored bit or bits and correct them. Clearly, an error-correction code will provide error
correction capability when used external to the encryption function. Will it also provide this capability if used
internal to the encryption function?
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