SPLK-1002 Advanced Visualization and Lookups Practice Question
A lookup definition is correctly configured, but when used in a search, no results are returned. The lookup file exists and contains data. What is the most likely cause?
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
✓
The lookup definition has the wrong case sensitivity setting.
Case sensitivity mismatch is a common issue: if the lookup definition expects exact case but the search field has different case, no match occurs. Option A is unlikely as too many fields do not prevent matching. Option C, disabling field extraction, would affect other parts but not lookup matching directly. Option D, format mismatch, would cause an error, not silently return no results.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
The lookup file has too many fields.
Why it's wrong here
Excess fields do not prevent matching; they are simply ignored or output.
- ✓
The lookup definition has the wrong case sensitivity setting.
Why this is correct
If case_sensitive_match is set incorrectly (e.g., false when it should be true), mismatches occur.
- ✗
The lookup file is in JSON format but the definition expects CSV.
Why it's wrong here
Format mismatch typically generates an error message, not silent failure.
- ✗
The search time field extraction for the matching field is disabled.
Why it's wrong here
Field extraction does not affect lookup matching; lookup works on raw field values.
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Same concept, more angles
2 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 lookup is not returning any results even though the search events contain the matching field. The lookup definition in transforms.conf includes 'default_match = false'. What is the most likely issue?
hard- A.The lookup has a time restriction that excludes the events
- ✓ B.The lookup is case-sensitive and the event fields have different case
- C.The lookup field names do not match the event field names
- D.The lookup command is missing the 'OUTPUT' clause
- E.The lookup file is empty
Why B: Lookups are case-sensitive by default; if event fields have different case than lookup fields, no match occurs. default_match=false causes no default value on mismatch.
Variation 2. A user creates a lookup definition for a CSV file containing user roles. The lookup is used in a search: `| lookup user_roles username OUTPUT role`. The search returns no additional field. The lookup file has columns: 'username', 'role', 'department'. What is the MOST likely issue?
medium- A.The username field in the search is not extracted.
- B.The lookup file is not in the lookups directory.
- ✓ C.The lookup definition uses a different filename than the CSV.
- D.The 'role' field is misspelled in the search.
Why C: The lookup definition must reference the exact filename of the CSV file. If the definition points to a different filename than the actual CSV, the lookup will fail to load the file, and no fields will be returned. The search syntax is otherwise correct, so the issue lies in the mismatch between the definition and the file.
JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This SPLK-1002 practice question is part of Courseiva's free Splunk certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the SPLK-1002 exam.