How does the Data link layer of the OSI Model accomplish error checking for Ethernet?
A)3-byte Frame Check Sequence (FCS)
B)5-byte Frame Check Sequence (FCS)
C)6-byte Frame Check Sequence (FCS)
D)4-byte Frame Check Sequence (FCS)

Question

Quizplus · Accepted Answer

Data link layer uses a 4-byte Frame Check Sequence (FCS) for Ethernet.
Key Takeaway: The FCS field of the frame is used to carry a 4-byte CRC polynomial. The CRC checks the validity of the received frame and can indicate when any bit errors have occurred during the transmission and reception. This counter is incremented when a frame is received with an invalid frame check sequence.

How Does the Data Link Layer of the OSI Model