350-601 · Question #147
Port security is statically configured on a Cisco Nexus 7700 Series switch and F3 line card. The switch is configured with an Advanced Services license. Which two actions delete secured MAC…
The correct answer is A. The address must be removed from the configuration. C. The interface must be converted to a routed port. When MAC addresses are statically configured under port security, they are written directly into the running configuration. Option A is correct: the only way to delete a statically secured MAC address is to explicitly remove it from the configuration using 'no switchport…
Question
Port security is statically configured on a Cisco Nexus 7700 Series switch and F3 line card. The switch is configured with an Advanced Services license. Which two actions delete secured MAC addresses from the interface? (Choose Two)
Options
- AThe address must be removed from the configuration.
- BThe address must reach the age limit that is configured for the interface.
- CThe interface must be converted to a routed port.
- DThe device must be restarted manually.
- EShutdown and then no shutdown must be run on the interface.
How the community answered
(39 responses)- A85% (33)
- B5% (2)
- D3% (1)
- E8% (3)
Explanation
When MAC addresses are statically configured under port security, they are written directly into the running configuration. Option A is correct: the only way to delete a statically secured MAC address is to explicitly remove it from the configuration using 'no switchport port-security mac-address <mac>'. Option C is correct: converting the interface to a routed port removes all Layer 2 features including port security, which clears all secured MAC entries. Option B (age limit) only applies to dynamically learned or sticky MAC addresses, not static ones - static entries do not age out. Option D (device restart) does not clear static MAC addresses since they persist in the saved configuration. Option E (shutdown/no shutdown) resets the interface but does not remove statically configured secured MAC addresses.
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