Which command can be used to block a frame with an unknown destination MAC address from being forwarded out of an interface?

A. switchport protected

B. It is not forwarded if the destination MAC address is unknown.

C. switchport port-fast

D. switchport block unicast








 

Suggested Answer: A



This question is in 300-115 Implementing Cisco IP Switched Networks (SWITCH) Exam
For getting Cisco Certified Network Professional (CCNP) Routing and Switching Certificate





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