A.The VRRP master forwards IP packets destined for the virtual MAC address.

B.The VRRP master uses the virtual MAC address to respond to ARP Request packets destined for the virtual IP address.

C.Even if the router becomes the master, the backup router with a higher priority preempts to be the master.

D.The VRRP master periodically sends VRRP packets.

A.802.1X and RADIUS are different names of the same technology.

B.802.1X and RADIUS are different technologies, but they are often used together for user access control.

C.802.1X is a technological system, in which RADIUS is included.

D.RADIUS is a technological system, in which 802.1X is included.

A.openflow listening-ip 1.1.1.1

B.sdn listening-ip 1.1.1.1

C.controller-ip 1.1.1.1

D.sdn controller souce-address 1.1.1.1

A.The interface is multiplexed.

B.The destination interface is not converted.

C.The address is not translated.

D.The source interface is not converted.

A.After an IP packet enters an MPLS domain, the device receiving the packet queries in the FIB table first.

B.If the tunnel ID is 0x0, the MPLS forwarding process starts.

C.If the tunnel ID is not 0x0, the normal IP forwarding process starts.

D.The system automatically assigns an ID to the upper-layer application that uses a tunnel. This ID is also called the tunnel ID.