Which command configures an HSRP group to become a slave of another HSRP group?
A.
standby slave
B.
standby group track
C.
standby follow
D.
standby group backup
Explanation:
Perform this task to configure multiple HSRP client groups. The “standby follow” command configures an HSRP group to become a slave of another HSRP group.
HSRP client groups follow the master HSRP with a slight, random delay so that all client groups do not change at the same time.
http://www.cisco.com/en/US/docs/ios-xml/ios/ipapp_fhrp/configuration/15-mt/fhp-hsrp- mgo.html