Which two statements about BPDU guard and root guard are true? (Choose two.)
A.
A switch configured with root guard disables any port that receives a superior BPDU.
B.
When a port on a switch configured with root guard enters the errdisable state, the
administrator must manually re-enable the port.
C.
BPDU guard is enabled by default for all ports on which PortFast is enabled.
D.
When a port on a switch configured with BPDU guard enters the errdisable state, it
can recover automatically if the errdisable recovery timeout is configured.
E.
A switch configured with BPDU guard disables any port with PortFast enabled if the
port receives a BPDU.
F.
Root guard should always be implemented at the network edge.