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)