Posted by: Pdfprep
Post Date: April 2, 2021
Which of the following statements regarding layer-2 switch is incorrect?
A . The switch learns MAC addresses automatically.
B . The layer-3 header is modified before the received packet is transmitted.
C . The layer-2 header is modified before the received packet is transmitted.
D . The layer-2 LAN switch operates at data link layer.
Answer: B
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