Security+ Question of the Week: Switch Port

How does a switch determine which port to use to transmit a packet once it is received?

  1. IP routes
  2. Security associations
  3. ACLs
  4. MAC tables

The correct answer is 4.

A MAC table is the collected/learned identities of attached network devices stored in memory on the switch. As a switch sees a new source MAC address in a received Ethernet frame, it adds the address to its lookup table for that specific physical port.

Related Courses
Security+ Prep Course (SY0-401)
Security+ Certification Boot Camp (SY0-401)

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