Which of the following routers were configured with the default HSRP values for each command?

Refer to the following exhibit:

You have configured the routers in the diagram for HSRP, resulting in the displayed configurations.
Which of the following routers were configured with the default HSRP values for each command?
A. rtrA
B. rtrB
C. rtrC
D. rtrD

Correct Answer: B
Explanation/Reference:
Explanation:
Only rtrB has the default HSRP settings. The default values for some of the important parameters for an HSRP-enabled router are listed in the following table:

In this case, the routers have the default group number 0. The two routers rtrB and rtrC have the default priority value of 100, srtrB also has the default timer values, which are 3 seconds for the Hello timer and 10 seconds for the hold time.
The rtrA router is not configured with the default settings because the priority is set to 50, which is not the default value. In addition, the Hello timer is set to 10 seconds (default is 3 seconds) and the hold time is set to 3 seconds (default is 10 seconds)
The rtrC router is not configured with the default settings. Although the priority is 100, which is the default, the Hello timer is set to 10 seconds (default is 3 seconds) and the hold time is set to 3 seconds (default is 10 seconds).
The rtrD router is not configured with the default settings. It has a priority of 75 and the default is 100.
Objective:
Infrastructure Services Sub-Objective:
Configure and verify first-hop redundancy protocols
References:
Home > Support > Configuring HSRP > How to Configure HSRP
Cisco IOS Master Command List, Release 12.4>show lnm station through system (ERM policy) > standby track Internetworking Case Studies > Using HSRP for Fault-Tolerant IP Routing > Configuring HSRP