Scroll down to section titled, How the cluster handles concurrent search quotas, "Overall search quota. This quota determines the maximum number of historical searches (combined scheduled and ad hoc) that the cluster can run concurrently. This quota is configured with max_Searches_per_cpu and related settings in limits.conf."

Explanation: The possible causes of the load balancing issue on the Universal Forwarder are A and C. The receiving port and the DNS record are both factors that affect the ability of the Universal Forwarder to distribute data across multiple receivers. If the receiving port is not properly set up to listen on the right port, or if the DNS record used is not set up with a valid list of IP addresses, the Universal Forwarder might fail to connect to some or all of the receivers, resulting in poor load balancing.

Explanation:
The inputs.conf file is used to configure inputs, distributed inputs such as forwarders, and file system monitoring in Splunk1.
The [script://myscript.sh] stanza specifies a script input, which means that Splunk runs the script and indexes its output1.
The interval setting determines how often Splunk runs the script. If the interval is set to 0, the script runs only once when Splunk starts up1. If the interval is omitted, the script runs at the default interval of 60 seconds2.
Therefore, option C is correct, and the other options are incorrect.

Explanation: According to the Splunk documentation1, to customize a configuration file, you need to create a new file with the same name in a local or app directory. Then, add the specific settings that you want to customize to the local configuration file. Never change or copy the configuration files in the default directory. The files in the default directory must remain intact and in their original location. The Splunk Enterprise upgrade process overwrites the default directory.
To deploy configuration files to deployment clients, you need to use the deployment server. The deployment server is a Splunk Enterprise instance that distributes content and updates to deployment clients2. The deployment server uses a directory called $SPLUNK_HOME/etc/deployment-apps to store the apps and configuration files that itdeploys to clients2. To update the configuration files in this directory, you need to edit them manually and then run the command $SPLUNK_HOME/bin/sp1unk reload deploy—server to make the changes take effect2.
Therefore, option A is incorrect because it does not include the reload command. Option B is incorrect because it makes the change on a deployment client instead of the deployment server. Option D is incorrect because it changes the default directory instead of the local directory.

Explanation:
The correct answer is C. Distributed search is the feature that allows search heads in a company’s European offices to search data in their New York offices.Distributed search also enables restricting access to certain indexers by using the splunk_server field or the server.conf file1.
Distributed search is a way to scale your Splunk deployment by separating the search management and presentation layer from the indexing and search retrieval layer. With distributed search, a Splunk instance called a search head sends search requests to a group of indexers, or search peers, which perform the actual searches on their indexes.The search head then merges the results back to the user2.
Distributed search has several use cases, such as horizontal scaling, access control, and managing geo-dispersed data.For example, users in different offices can search data across the enterprise or only in their local area, depending on their needs and permissions2.
The other options are incorrect because:
A. Indexer clustering is a feature that replicates data across a group of indexers to ensure data availability and recovery.Indexer clustering does not directly affect distributed search, although search heads can be configured to search across an indexer cluster3.
B. LDAP control is a feature that allows Splunk to integrate with an external LDAP directory service for user authentication and role mapping. LDAP control does not affect distributed search, although it can be used to manage user access to data and searches.
D. Search head clustering is a feature that distributes the search workload across a group of search heads that share resources, configurations, and jobs. Search head clustering does not affect distributed search, although the search heads in a cluster can search across the same set of indexers.