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

A.Router 172.16.11.111 will be the active router because its HSRP priority is preferred over router172.16.11.112
B.The IP address 172.16.11.112 is the virtual HSRP router IP address
C.The nonpreempt feature is enabled on the 172.16.11.112 router
D.The IP address 172.16.11.111 is the virtual HSRP router IP address
E.Router 172.16.11.112 will be the active router because its HSRP priority is preferred over router172.16.11.111
F.The preempt feature is not enabled on the 172.16.11.111 router

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