The correct answer is the SPL that places `NOT host="host1"` before the `top` command, specifically `index=main sourcetype=access_combined status>400 NOT host="host1" | top limit=5 source`. This is correct because excluding sources before the `top` command runs ensures the aggregation only considers the filtered dataset, preventing the unwanted host from skewing the top 5 results. On the Splunk SPLK-1003 exam, this tests your understanding of search-time filtering versus post-command filtering—a common trap is placing the exclusion after `top` with a `where` clause, which still counts the excluded host in the ranking. Remember, the `top` command calculates statistics from whatever events it receives, so you must exclude unwanted sources in the base search for accurate, efficient results. A helpful memory tip: "Filter first, then top—never let a bad host pollute your top."
SPLK-1003 Advanced Searching and Statistics Practice Question
This SPLK-1003 practice question tests your understanding of advanced searching and statistics. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. 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 user wants to create a report that shows the top 5 sources of errors, excluding a specific source 'host1'. Which SPL is correct?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
index=main sourcetype=access_combined status>400 NOT host="host1" | top limit=5 source
Option A is correct because it filters out 'host1' before the `top` command runs, ensuring that the top 5 sources of errors are calculated from the remaining data. The `NOT host="host1"` clause is placed in the base search, which is the most efficient approach and guarantees that 'host1' is excluded from the statistical aggregation.
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.
✓
index=main sourcetype=access_combined status>400 NOT host="host1" | top limit=5 source
Why this is correct
Correctly excludes host1 before top, ensuring accurate top 5.
Related concept
Read the scenario before looking for a memorised answer.
✗
index=main sourcetype=access_combined status>400 | top limit=5 source | where source!="host1"
Why it's wrong here
Filters after top, same issue as A.
✗
index=main sourcetype=access_combined status>400 | top limit=5 source | search source!="host1"
Why it's wrong here
Filters after top, so host1 may appear in top list.
✗
index=main sourcetype=access_combined status>400 | search NOT host=host1 | top limit=5 source
Why it's wrong here
Syntax error: NOT without field name is ambiguous.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Splunk often tests the misconception that filtering after a transforming command like `top` is equivalent to filtering before it, when in reality the aggregation is performed on the entire dataset first, altering the results.
Detailed technical explanation
How to think about this question
In Splunk, the order of operations matters: filtering early in the pipeline (in the base search or immediately after) reduces the data volume sent to transforming commands like `top`, improving performance and ensuring correct statistical results. The `top` command uses the `count` field internally to rank results, and if you filter after `top`, the ranking is already computed on the unfiltered dataset. Additionally, the `search` command is a streaming command that can be used anywhere, but it is less efficient than using base search filters because it does not leverage index-time optimizations.
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-1003 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.
Advanced Searching and Statistics — This question tests Advanced Searching and Statistics — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: index=main sourcetype=access_combined status>400 NOT host="host1" | top limit=5 source — Option A is correct because it filters out 'host1' before the `top` command runs, ensuring that the top 5 sources of errors are calculated from the remaining data. The `NOT host="host1"` clause is placed in the base search, which is the most efficient approach and guarantees that 'host1' is excluded from the statistical aggregation.
What should I do if I get this SPLK-1003 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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