This SPLK-1002 practice question tests your understanding of using fields and lookups. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. A key principle to apply: eval case function. 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.
Exhibit
Refer to the exhibit.
Search:
index=main | eval priority = case(error = "critical", 1, error = "warning", 2, 1=1, 3) | stats count by priority
Results show priority values 1, 2, and 3. What would happen if the eval statement was changed to: eval priority = case(error = "critical", 1, error = "warning", 2, true(), 3)?
Refer to the exhibit. What would happen if the eval statement was changed to: eval priority = case(error = "critical", 1, error = "warning", 2, true(), 3)?
Exhibit
Refer to the exhibit.
Search:
index=main | eval priority = case(error = "critical", 1, error = "warning", 2, 1=1, 3) | stats count by priority
Results show priority values 1, 2, and 3. What would happen if the eval statement was changed to: eval priority = case(error = "critical", 1, error = "warning", 2, true(), 3)?
A
The search returns no results
Why wrong: No reason for no results.
B
The search returns the same results as before
true() functions similarly to 1=1 as a catch-all.
C
The search only returns priority 3
Why wrong: The conditions for 1 and 2 still apply.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The search returns the same results as before
The changed `case` statement uses assignment (`=`) instead of comparison (`==`). In Splunk's eval, assignment returns the assigned value, which is truthy for non-empty strings like “critical” or “warning”. However, because the conditions are evaluated in order, the first true condition still matches the intended event: if `error` is “critical”, `error = "critical"` returns “critical” (truthy) → priority=1; if `error` is “warning”, the first condition also becomes truthy after assignment (since `error` is overwritten to “critical”), but crucially, the search output does not depend on the `error` field after this eval in the given exhibit. The `priority` field is assigned the same values as in the original case (which used `==`), and no subsequent filtering relies on the changed `error` field. Therefore, the search returns the same results as before.
Key principle: eval case function
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 search returns no results
Why it's wrong here
No reason for no results.
✓
The search returns the same results as before
Why this is correct
true() functions similarly to 1=1 as a catch-all.
Related concept
eval case function
✗
The search only returns priority 3
Why it's wrong here
The conditions for 1 and 2 still apply.
✗
The search returns a syntax error
Why it's wrong here
true() is a valid eval function.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Candidates often assume that `=` inside `case` works as equality, but it is assignment. However, in this specific scenario, the assignment does not alter the final results because the overwritten `error` field is not used later, and the priority values remain unchanged. The trap is that while the behavior differs syntactically, the output is identical here.
Detailed technical explanation
How to think about this question
Under the hood, Splunk's `eval` command uses a case-insensitive comparison for strings by default, and both `=` and `==` are treated as equality operators in this context. The `true()` function is a logical constant that always evaluates to 1, making it a reliable default case. In real-world scenarios, this pattern is used to map severity levels to numeric priorities for sorting or filtering, and using `=` instead of `==` is a common style choice that does not affect functionality.
KKey Concepts to Remember
eval case function
Assignment vs comparison
Field overwriting
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
eval case function
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. eval case function 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 eval case function, then practise related SPLK-1002 questions on the same topic to reinforce the concept.
Using Fields and Lookups — This question tests Using Fields and Lookups — eval case function.
What is the correct answer to this question?
The correct answer is: The search returns the same results as before — The changed `case` statement uses assignment (`=`) instead of comparison (`==`). In Splunk's eval, assignment returns the assigned value, which is truthy for non-empty strings like “critical” or “warning”. However, because the conditions are evaluated in order, the first true condition still matches the intended event: if `error` is “critical”, `error = "critical"` returns “critical” (truthy) → priority=1; if `error` is “warning”, the first condition also becomes truthy after assignment (since `error` is overwritten to “critical”), but crucially, the search output does not depend on the `error` field after this eval in the given exhibit. The `priority` field is assigned the same values as in the original case (which used `==`), and no subsequent filtering relies on the changed `error` field. Therefore, the search returns the same results as before.
What should I do if I get this SPLK-1002 question wrong?
Review eval case function, then practise related SPLK-1002 questions on the same topic to reinforce the concept.
What is the key concept behind this question?
eval case function
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