SPLK-1002 Transactions and Event Correlation Practice Question
A transaction search is processing too many fields. Which command should be used immediately before the transaction command to reduce memory usage?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
fields user_id, _time
The 'fields' command with a positive list (without '+' or '-') sets the field list to exactly those specified, keeping only user_id and _time. This reduces memory usage significantly before the transaction command, which typically needs _time and a grouping field like user_id. Option A is incorrect because removing _raw and _time but keeping other fields does not sufficiently reduce fields; transaction requires _time. Option B is incorrect because 'fields +' adds fields to the existing set, not replacing them, so it does not reduce memory. Option C is incorrect because 'fields - * except user_id' removes all fields except user_id, but also removes _time, which is essential for the transaction command to correlate events based on time.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
fields - _raw, _time
Why it's wrong here
Incorrect: this only removes two fields, leaving many others.
- ✗
fields + user_id, _time
Why it's wrong here
Incorrect: the '+' appends fields, retaining all original fields.
- ✗
fields - * except user_id
Why it's wrong here
Incorrect: this removes all fields except user_id, including _time.
- ✓
fields user_id, _time
Why this is correct
Correct: this keeps only the necessary fields.
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