100-150: Cisco Certified Support Technician (CCST) NetworkingDemo

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QuestionQ19

Networking Fundamentals

Which information does a switch’s MAC address table contain?

  • A MAC address-to-IP address mappings learned through ARP requests or manually configured by the administrator
  • B Dynamically learned Layer 2 and Layer 3 addresses of devices communicating on active ports on the switch
  • C All active ports on the switch and the host Layer 3 addresses that were dynamically learned on each port
  • D The MAC addresses of devices communicating on active ports and static MAC addresses configured by the administrator
Explanation

A switch MAC address table stores the Layer 2 MAC addresses learned from devices sending frames through active switch ports, as well as any static MAC address entries configured by an administrator. IP addresses and other Layer 3 addressing information are not part of this table.

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