Which Splunk tool offers a health check for administrators to evaluate the health of their Splunk deployment?

When adding or rejoining a member to a search head cluster, the following error is displayed:
Error pulling configurations from the search head cluster captain; consider performing a destructive
configuration resync on this search head cluster member.
What corrective action should be taken?

A Splunk architect has inherited the Splunk deployment at Buttercup Games and end users are complaining that the events are inconsistently formatted for a web sourcetype. Further investigation reveals that not all web logs flow through the same infrastructure: some of the data goes through heavy forwarders and some of the forwarders are managed by another department.
Which of the following items might be the cause for this issue?

Which of the following options can improve reliability of syslog delivery to Splunk? (Select all that apply.)

In search head clustering, which of the following methods can you use to transfer captaincy to a different member? (Select all that apply.)