Which three of the following network features are methods used to achieve high availability？ （）

A. Router 172.16.11.112 will be the active router because its HSRP priority is preferred over router  172.16.11.111.
B. Router 172.16.11.111 will be the active router because its HSRP priority is preferred over router  172.16.11.112.
C. The IP address 172.16.11.111 is the virtual HSRP router IP address.
D. The IP address 172.16.11.112 is the virtual HSRP router IP address.
E. The nonpreempt feature is enabled on the 172.16.11.112 router.
F. The preempt feature is not enabled on the 172.16.11.111 router.

A. The local IP address of Router A is 10.1.0.6.
B. The local IP address of Router A is 10.1.0.20.
C. If Ethernet 0/2 goesdown， the standby router will take over.
D. When Ethernet 0/3 of RouterA comes back up， the priority will become 105.
E. Router A will assume the active state if its priority is the highest.

A. The router with IP address 172.16.11.111 haspreempt configured.  
B. The final active router is the router with IP address 172.16.11.111.
C. The router with IP address 172.16.11.112 has nonpreempt configured.
D. The priority of the router with IP address 172.16.11.112 is preferred over the router with IP  address 172.16.11.111.
E. The router with IP address 172.16.11.112 is using default HSRP priority.
F. The IP address 172.16.11.115 is the virtual HSRP IP address.