What action does an Ethernet switch take when it receives a frame with an unknown Layer 2 source address?

Last Updated: Oct 27, 2020
IT Exam Items Repository › Category: CCNA CyberOps › What action does an Ethernet switch take when it receives a frame with an unknown Layer 2 source address?

What action does an Ethernet switch take when it receives a frame with an unknown Layer 2 source address?

  • It forwards the frame out all interfaces except the interface on which it was received.
  • It forwards the frame to the default gateway.
  • It records the source address in the address table of the switch.
  • It drops the frame.

Explanation: When an Ethernet switch receives a frame with an unknown Layer 2 address, the switch records that address in the address table.

Related exam: Modules 11 - 12: Network Infrastructure Security Group Exam

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