I don't understand this question. What do you mean by "inquiries for log processing"?
If you are new to Splunk, you might want to look at the documentation at docs.splunk.com
Or take the Search Tutorial
Or check out the free Splunk Education videos on YouTube at the Splunk How-to channel
Thank you lguinn,
Yes, I am a new user, I meant some Splunk commands that will help me to run some common use cases in SIEM. Like around access priviledge, Correlations,.....