What are two reasons that cause late collisions to increment on an Ethernet interface? (Choose two)

What are two reasons that cause late collisions to increment on an Ethernet interface? (Choose two)
A . when the sending device waits 15 seconds before sending the frame again
B . when the cable length limits are exceeded
C . when one side of the connection is configured for half-duplex
D . when Carner Sense Multiple Access/Collision Detection is used
E . when a collision occurs after the 32nd byte of a frame has been transmitted

Answer: BC

Explanation:

A late collision is defined as any collision that occurs after the first 512 bits (or 64th byte) of the frame have been transmitted. The usual possible causes are full-duplex/half-duplex mismatch, exceeded Ethernet cable length limits, or defective hardware such as incorrect cabling, noncompliant number of hubs in the network, or a bad NIC.

Late collisions should never occur in a properly designed Ethernet network. They usually occur when Ethernet cables are too long or when there are too many repeaters in the network.

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