- A
Define the lookup as a time-based lookup.
Why wrong: Not time-based.
- B
Define the lookup table file in the transforms.conf with a search string.
Why wrong: transforms.conf defines lookup parameters.
- C
Upload the CSV to Splunk and it automatically becomes available.
Why wrong: Requires explicit definition.
- D
Define a lookup definition in props.conf and transforms.conf.
Standard configuration.
Question 217 of 520
How to Configure a Lookup Table in Splunk
This SPLK-1002 practice question tests your understanding of using fields and lookups. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. A key principle to apply: transforms.conf. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
An administrator wants to add a lookup table that maps user IDs to department names. The lookup file is a CSV with columns `user_id` and `department`. To use this lookup in searches, what must be configured?
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
✓
Define a lookup definition in props.conf and transforms.conf.
Option D is correct because to use a static CSV lookup in Splunk, you must upload the file to the lookups directory, then define a lookup stanza in transforms.conf specifying the filename and field mapping (e.g., `[users_lookup] filename = users.csv`). Optionally, you can create a lookup definition in props.conf for automatic field enrichment, but the lookup can be used manually via the `lookup` or `inputlookup` commands with just the transforms.conf entry. The key is that configuring both transforms.conf (mandatory) and props.conf (for automatic lookup) is the standard approach to fully integrate the lookup.
Key principle: transforms.conf
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Define the lookup as a time-based lookup.
Why it's wrong here
Not time-based.
- ✗
Define the lookup table file in the transforms.conf with a search string.
Why it's wrong here
transforms.conf defines lookup parameters.
- ✗
Upload the CSV to Splunk and it automatically becomes available.
Why it's wrong here
Requires explicit definition.
- ✓
Define a lookup definition in props.conf and transforms.conf.
Why this is correct
Standard configuration.
Related concept
transforms.conf
Common exam traps
Common exam trap: answer the scenario, not the keyword
Splunk often tests the misconception that uploading a CSV file alone makes it usable as a lookup, but the trap here is that you must configure transforms.conf to define the lookup table, and optionally props.conf for automatic lookups. Simply uploading is insufficient.
Detailed technical explanation
How to think about this question
Under the hood, Splunk reads the CSV file from `$SPLUNK_HOME/etc/apps/<app>/lookups/` and uses the transforms.conf stanza to map the CSV columns to search-time fields. The lookup definition in props.conf (or the UI) ties the transforms.conf stanza name to a lookup name used in SPL commands. A subtle behavior: if the CSV file is updated, Splunk caches the file; you must either restart Splunk or use the `| lookup` command with `update_period` to refresh the data without restart.
KKey Concepts to Remember
- transforms.conf
- Static lookup
- props.conf
TExam Day Tips
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
transforms.conf
Real-world example
How this comes up in practice
A practitioner preparing for the SPLK-1002 exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. transforms.conf Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
What to study next
Got this wrong? Here's your next step.
Review transforms.conf, then practise related SPLK-1002 questions on the same topic to reinforce the concept.
- →
Using Fields and Lookups — study guide chapter
Learn the concepts, then practise the questions
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Using Fields and Lookups practice questions
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FAQ
Questions learners often ask
What does this SPLK-1002 question test?
Using Fields and Lookups — This question tests Using Fields and Lookups — transforms.conf.
What is the correct answer to this question?
The correct answer is: Define a lookup definition in props.conf and transforms.conf. — Option D is correct because to use a static CSV lookup in Splunk, you must upload the file to the lookups directory, then define a lookup stanza in transforms.conf specifying the filename and field mapping (e.g., `[users_lookup] filename = users.csv`). Optionally, you can create a lookup definition in props.conf for automatic field enrichment, but the lookup can be used manually via the `lookup` or `inputlookup` commands with just the transforms.conf entry. The key is that configuring both transforms.conf (mandatory) and props.conf (for automatic lookup) is the standard approach to fully integrate the lookup.
What should I do if I get this SPLK-1002 question wrong?
Review transforms.conf, then practise related SPLK-1002 questions on the same topic to reinforce the concept.
What is the key concept behind this question?
transforms.conf
About these practice questions
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Same concept, more angles
1 more ways this is tested on SPLK-1002
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. A Splunk administrator is configuring a lookup to enrich firewall logs with a static CSV file containing allowed IP ranges. Which TWO statements about lookup configuration are correct?
hard- A.A KV Store lookup is required for static tables.
- ✓ B.The lookup definition must include the fields to match on from the event data.
- ✓ C.The CSV file can be uploaded through the Lookups menu in Settings.
- D.The lookup is defined in macros.conf.
- E.The CSV file must be placed in an absolute path on the search head.
Why B: Option B is correct because a lookup definition must specify the fields from the event data that will be used to match against the lookup table. This is configured in the 'Lookup definition' settings where you define the input fields (event fields) and output fields (lookup fields). Without this match configuration, Splunk cannot correlate the event data with the CSV file contents.
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Last reviewed: Jun 30, 2026
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