Which Splunk server role regulates the functioning of indexer cluster?

A Splunk user successfully extracted an ip address into a field called src_ip. Their colleague cannot see that field in their search results with events known to have src_ip. Which of the following may explain the problem? (Select all that apply.)

What does the deployer do in a Search Head Cluster (SHC)? (Select all that apply.)

Which of the following clarification steps should be taken if apps are not appearing on a deployment client?
(Select all that apply.)

A three-node search head cluster is skipping a large number of searches across time. What should be done to increase scheduled search capacity on the search head cluster?