Answer is B) Duplex mismatch
Why?
A duplex mismatch occurs when:
One interface is set to full-duplex
The other is set to half-duplex
This commonly causes:
Late collisions β
FCS/CRC errors β
Slow throughput
Retransmissions
Do you even know that?
Answering a full "Good morning" greeting text with just a reply of "morning" has a worse level of non-chalance than leaving a serious WhatsApp message on read?