When the store-and-forward method of switching is in use, what part of the Ethernet frame is used to perform an error check?

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When the store-and-forward method of switching is in use, what part of the Ethernet frame is used to perform an error check?

CRC in the trailer
source MAC address in the header
destination MAC address in the header
protocol type in the header

Exam with this question: CCNA 1 v7 Modules 4 – 7 Exam Answers

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IT Administrator Staff answered 4 years ago

The cyclic redundancy check (CRC) part of the trailer is used to determine if the frame has been modified during transit. If the integrity of the frame is verified, the frame is forwarded. If the integrity of the frame cannot be verified, then the frame is dropped.