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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If check sum 11011010 & complement 00000000 or result is zero then received data is ____
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Discarded
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retransmitted
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interrupted
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accepted
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Explanation:
Detailed explanation-1: -Loved by our community Second, if the value of one data item is increased (intentionally or maliciously) and the value of another one is decreased (intentionally or maliciously) the same amount, the sum and the checksum cannot detect these changes.
Detailed explanation-2: -Add all bytes of the packet, except the start delimiter 0x7E and the length (the second and third bytes). Keep only the lowest 8 bits from the result. Subtract this quantity from 0xFF. 28-Jun-2022
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