Which Splunk configuration ensures events are parsed and indexed only once for optimal storage?

Why Use Index-Time Transformations for One-Time Parsing & Indexing?

Splunk parses and indexes data once during ingestion to ensure efficient storage and search performance. Index-time transformations ensure that logs are:

✅Parsed, transformed, and stored efficiently before indexing.✅Normalized before indexing, so the SOC team doesn’t need to clean up fields later.✅Processed once, ensuring optimal storage utilization.

????Example of Index-Time Transformation in Splunk:????Scenario: The SOC team needs to mask sensitive data in security logs before storing them in Splunk.✅Solution: Use anINDEXED_EXTRACTIONSrule to:

Redact confidential fields (e.g., obfuscate Social Security Numbers in logs).

Rename fields for consistency before indexing.