Which two statements about MAC Authentication Bypass are true?

Which two statements about MAC Authentication Bypass are true? (Choose two.)

A.
Traffic from an endpoint is authorized to pass after MAB authenticates the MAC address of the
endpoint.

B.
During the learning stage, the switch examines multiple packets from the endpoint to determine
the MAC address of the endpoint.

C.
After the switch learns the MAC address of the endpoint, it uses TACACS+ to authenticate it.

D.
After learning a source MAC address, it sends the host a RADIUS Account-Request message to
validate the address.

E.
The MAC address of a device serves as its user name and password to authenticate with a RADIUS
server.