DATA LINK LAYER WIRED NETWORKS
DATA LINK CONTROL DLC
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The final number in a code of numbers. It is calculated from all the other numbers in the code. It’s purpose is to spot errors on data entry.
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Parity Check
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Checksum
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Check Digit
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None of the above
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Explanation:
Detailed explanation-1: -Parity Checking of Error Detection It is the simplest technique for detecting and correcting errors. The MSB of an 8-bits word is used as the parity bit and the remaining 7 bits are used as data or message bits. The parity of 8-bits transmitted word can be either even parity or odd parity.
Detailed explanation-2: -When transmitting data, errors may occur and some data may be incorrectly received. To overcome this, an extra value is transmitted to help determine if the data received is correct or incorrect. This value is known as a check digit.
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