You have configured router R1 with HSRP, using the standard defaults. Which three
statements are true of a default HSRP configuration? (Select three)

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.

Explanation:
HSRP uses a priority scheme to determine which HSRP-configured router is to be the
default active router. To configure a router as the active router, you assign it a priority that is
higher than the priority of all the other HSRP-configured routers. The default priority is 100,
so if you configure just one router to have a higher priority, that router will be the default
active router.
For both HSRP and MHSRP, you can use the tracking feature to adjust the Hot Standby
priority of a router based on whether certain of the router’s interfaces are available. When a
tracked interface becomes unavailable, the HSRP priority of the router is decreased. The
default decrement value is 10.
The standby timers interface configuration command sets the interval in seconds between
hello messages (called the hello time) to five seconds and sets the duration in seconds that
a router waits before it declares the active router to be down (called the hold time) to eight
seconds. (The defaults are three and 10 seconds, respectively.) If you decide to modify the
default values, you must configure each router to use the same hello time and hold time.
Reference: http://www.cisco.com/univercd/cc/td/doc/cisintwk/ics/cs009.htm#wp3475