The correct answer is that the `_time` field is permanently removed and no longer available for later commands. This happens because the `fields` command with a minus sign, as in `| fields - _raw, _time`, strips those fields from the working set of events in the search pipeline, and once removed, they cannot be recovered by any subsequent command. On the Splunk Core Certified User SPLK-1002 exam, this tests your understanding of how the `fields` command operates as a data-reduction tool that permanently discards specified fields from the event stream, unlike temporary filtering. A common trap is assuming removed fields can be re-referenced later, but the pipeline is linear and irreversible for field removal. Remember the memory tip: "Minus means gone for good"—once you subtract a field with `fields -`, it is erased from the search results entirely.
SPLK-1002 Using Fields and Lookups Practice Question
This SPLK-1002 practice question tests your understanding of using fields and lookups. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. 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.
A search uses `| fields - _raw, _time` and then later needs `_time` again. What will happen?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The `_time` field is no longer available for later commands.
The `| fields - _raw, _time` command explicitly removes the `_time` field from the search results. Once a field is removed using the `fields` command with a minus sign, it is no longer available for any subsequent commands in the search pipeline. This is because the `fields` command operates on the current working set of events, stripping out the specified fields entirely, and later commands cannot reference a field that has been removed.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
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 `_time` field is no longer available for later commands.
Why this is correct
The fields command with '-' removes those fields from subsequent processing.
Related concept
Read the scenario before looking for a memorised answer.
✗
The command removes all fields except _raw and _time.
Why it's wrong here
The '-' prefix removes the listed fields.
✗
The command will cause an error because you cannot remove internal fields.
Why it's wrong here
You can remove internal fields like _raw and _time.
✗
The `_time` field will still be available but empty.
Why it's wrong here
Removed fields are not available.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often assume internal fields like `_time` cannot be removed or that removing them only empties the value, when in fact the `fields` command with a minus sign completely deletes the field from the event data.
Detailed technical explanation
How to think about this question
Under the hood, Splunk's `fields` command modifies the event's field dictionary, and removing a field like `_time` means it is stripped from the in-memory representation of each event. This is different from using `eval` to set a field to null, which would keep the field present but empty. In real-world scenarios, if you later need `_time` for time-based operations (e.g., `timechart` or `bucket`), you must ensure it is not removed, or you must re-extract it from `_raw` or another timestamp source.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
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
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
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. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. 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.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Using Fields and Lookups — This question tests Using Fields and Lookups — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: The `_time` field is no longer available for later commands. — The `| fields - _raw, _time` command explicitly removes the `_time` field from the search results. Once a field is removed using the `fields` command with a minus sign, it is no longer available for any subsequent commands in the search pipeline. This is because the `fields` command operates on the current working set of events, stripping out the specified fields entirely, and later commands cannot reference a field that has been removed.
What should I do if I get this SPLK-1002 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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