Implementing Cisco IP Switched Networks (CCNP SWITCH, legacy) — Question 24

Which two restrictions of the port security feature are true? (Choose two.)

Answer options

• A. Static port MAC address assignments are not supported.
• B. It is not supported on PVLAN ports.
• C. It is not supported on EtherChannel port-channel interfaces.
• D. A single device can learn a maximum of three sticky MAC addresses.
• E. It is supported on destination SPAN ports.

Correct answer: A, C

Explanation

Option A is correct because static MAC address assignments are indeed not allowed with port security. Option C is also correct as port security does not function on EtherChannel port-channel interfaces. The other options either misrepresent the capabilities of port security or state unsupported features incorrectly.