Before administrators enable port security, which additional step must they complete to prevent issues?

Refer to the exhibit.

Several interfaces on an AOS-Switch enforce 802. IX to a RADIUS server at 10.254.378.521. The interface 802. IX settings are shown in the exhibit, and 802. IX is also enabled globally. The security team have added a requirement tor port security on the interfaces as well.

Before administrators enable port security, which additional step must they complete to prevent issues?
A . Set an 802. l X client limit on the interfaces.
B . Manually add legitimate MAC addresses to the switch authorized MAC list.
C . Enable eavesdropping protection on the interfaces.
D . Enable DHCP snooping on VLAN 20.

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Answer: D