200-301: Cisco Certified Network AssociateDemo

Question

What is the default port-security behavior on a trunk link?

A It places the port in the err-disabled state if it learns more than one MAC address.
B It causes a network loop when a violation occurs.
C It disables the native VLAN configuration as soon as port security is enabled.
D It places the port in the err-disabled state after 10 MAC addresses are statically configured.

Explanation

Cisco port security uses a default maximum of 1 secure MAC address and a default violation action of shutdown. A trunk link normally learns multiple MAC addresses, so once more than one MAC address is learned, a security violation occurs and the interface is placed into the err-disabled state.

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Port Security – Catalyst 9300 Security Configuration Guide

200-301: Cisco Certified Network AssociateDemo

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Notes

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