For phone hardening tasks, which two statements are accurate? (Choose two.)

A.
GARPs can be allowed in order to monitor phone access more closely.

B.
By default, Cisco Unified CallManager disables the PC port on all Cisco IP phones that have a PC port. It is possible to enable the PC Port setting in the Phone Configuration window of Cisco Unified CallManager Administration.

C.
Disabling settings access automatically sets the current Contrast, Ring Type, Network Configuration, Model Information, Status, and Volume settings to the default for that phone.

D.
Disabling PC voice VLAN access will cause packets received from the PC port that uses the voice VLAN tag to drop.

E.
Disabling settings access prohibits access to all the options that are normally displayed when the Settings button on the phone is pressed.