DATA LINK LAYER WIRED NETWORKS
INTRODUCTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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What is the purpose of the CRC value that is found in the FCS trailer field of a frame?
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To verify the integrity of the received frame.
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To verify the physical address in the frame.
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To verify the logical address in the frame.
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To compute the checksum header for the data field in the frame.
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Explanation:
Detailed explanation-1: -28/02/2023 13:02CCNA 1 v7 Modules 4-7: Ethernet Concepts Exam AnswersExplanation:The CRC value in the FCS field of the received frame iscompared to the computed CRC value of that frame, in order to verify theintegrity of the frame. If the two values do not match, then the frame isdiscarded.
Detailed explanation-2: -The FCS provides error detection only. Error recovery must be performed through separate means. Ethernet, for example, specifies that a damaged frame should be discarded and does not specify any action to cause the frame to be retransmitted.
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