Router R1 is configured for HSRP. 
Which of the following are valid HSRP states on R1？ （）

A. The Standby hello time is 2 seconds.
B. Two HSRP groups are configured.
C. The Standby track interface priority is 10.
D. The Standby hold time is 10 seconds
E. The Standby priority is 100.
F. The Standby delay is 3 seconds.

A. GLBP
B. ICMP
C. MSTP
D. HSRP
E. VRRP
F. NHRP

A. To assign the HSRP router priority in a standby group， the standby group-number priority  priority-value global configuration command must be used.
B. The default priority of a router is zero （0）.
C. The no standby priority command assigns a priority of 100 to the router.
D. Assuming that preempting has also been configured， the router with the lowest priority in an  HSRP group would become the active router.
E. When two routers in an HSRP standby group are configured with identical priorities， the router  with the highest configured IP address will become the active router.