Which of the following types of NAT allows multiple private internal IP addresses to use a singlepublic external IP address？（）

A.The network is load balancing among different members of the VRRP group
B.The default hello timers are 1 second
C.The interface IP address is being used as the virtual IP address
D.There are several routers in the group simultaneously forwarding traffic for the group
E.It is a Cisco Proprietary protocol
F.The default hello timers are 3 seconds

A.A routed port does not run STP or DTP
B.A routed port is considered to be in a down state if it is not operational at both Layer 1 andLayer 2
C.An SVI is considered to be in a down state if it is not operational at both Layer 1 and Layer 2
D.An SVI is considered to be in a down state only when none of the ports in the correspondingVLAN are active
E.An SVI port does not run 5TP or DTP
F.To create a trunk， an SVI can be logically divided into subinterfaces