A customer has a multisite cluster (two sites, each site in its own data center) and users experiencing a slow response when searches are run on search heads located in either site. The Search Job Inspector shows the delay is being caused by search heads on either site waiting for results to be returned by indexers on the opposing site. The network team has confirmed that there is limited bandwidth available between the two data centers, which are in different geographic locations.
Which of the following would be the least expensive and easiest way to improve search performance?

A customer is using regex to whitelist access logs and secure logs from a web server, but only the access logs are being ingested. Which troubleshooting resource would provide insight into why the secure logs are not being ingested?

A customer is migrating their existing Splunk Indexer from an old set of hardware to a new set of indexers.
What is the earliest method to migrate the system?

An index receives approximately 50GB of data per day per indexer at an even and consistent rate. The customer would like to keep this data searchable for a minimum of 30 days. In addition, they have hourly scheduled searches that process a week's worth of data and are quite sensitive to search performance.
Given ideal conditions (no restarts, nor drops/bursts in data volume), and following PS best practices, which of the following sets of indexes.conf settings can be leveraged to meet the requirements?
frozenTimePeriodInSecs, maxDataSize, maxVolumeDataSizeMB, maxHotBuckets

When monitoring and forwarding events collected from a file containing unstructured textual events, what is the difference in the Splunk2Splunk payload traffic sent between a universal forwarder (UF) and indexer compared to the Splunk2Splunk payload sent between a heavy forwarder (HF) and the indexer layer? (Assume that the file is being monitored locally on the forwarder.)