Which of the following statements describes the use of the Filed Extractor (FX)?

Question

Options

• AThe Field Extractor automatically extracts all field at search time.
• BThe Field Extractor uses PERL to extract field from the raw events.
• CField extracted using the Extracted persist as knowledge objects.
• DFields extracted using the Field Extractor do not persist and must be defined for each search.

• A
  6% (2)
• B
  3% (1)
• C
  91% (32)

Explanation

Fields extracted using the Field Extractor (FX) persist as knowledge objects in Splunk. This means once you define a field extraction through the FX interface, it is saved to Splunk's configuration (props.conf/transforms.conf) and automatically applied to future searches matching the same sourcetype or source - you do not need to redefine it each time. Option A is incorrect because the FX does not automatically extract all fields; it is used to manually define new extractions. Option B is incorrect because while the FX uses regular expressions (regex), these are PCRE-based, not labeled as 'PERL' in Splunk's interface. Option D is the opposite of the truth - FX extractions do persist.

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