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Dell-EMC

DEA-5TT1 · Question #17

An Ethernet switch receives a frame from a directly connected host. The source MAC address of the frame is not present in the MAC address table for the switch. However, the destination address is…

The correct answer is B. Adds the source MAC address and port to the MAC address table and forwards the frame. See the full explanation below for the reasoning.

Question

An Ethernet switch receives a frame from a directly connected host. The source MAC address of the frame is not present in the MAC address table for the switch. However, the destination address is present in the MAC address table. What does the switch do with the frame?

Options

  • AFlushes the destination MAC address and updates the MAC address table in the switch.
  • BAdds the source MAC address and port to the MAC address table and forwards the frame.
  • CDiscards the frame on all ports and sends an error message back to the host.
  • DFloods the frame to all ports except for the port the frame originated from to locate the source MAC

How the community answered

(24 responses)
  • A
    4% (1)
  • B
    71% (17)
  • C
    8% (2)
  • D
    17% (4)

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