An analyst wants to find all events in the 'web' index where the `status` field is 'error' and the `user_id` is in a static list of 5 known bad users. Which approach is most efficient?

Use a subsearch: `index=web status=error [search index=users | fields user_id]` because it is the standard way to filter by a list.

Use a simple search with `OR`: `index=web status=error (user_id=u1 OR user_id=u2 OR user_id=u3 OR user_id=u4 OR user_id=u5)` because the list is small and static, making it more efficient than a subsearch.

Use a lookup: `index=web status=error | lookup bad_users user_id OUTPUT user_id` because it avoids the subsearch overhead.

Use a `join` command: `index=web status=error | join user_id [| inputlookup bad_users]` because join is always faster than a subsearch.

Which of the following is a good reason to use a subsearch?

You want to display results in a chart.

You want to join two static lookup files.

You want to remove duplicate events.

You need to filter events based on a list of values that is computed from a separate aggregation.

How can the default result limit for a subsearch affect the accuracy of the outer search?

The limit causes the subsearch to fail if it exceeds 50,000 results.

The limit only applies to the outer search, not the subsearch.

If the subsearch returns more than 50,000 results, only the first 50,000 are used, potentially missing relevant values.

The limit has no effect on the outer search results.

Which fields from a subsearch are passed to the outer search by default?

All fields from the subsearch results.

Only fields that match the outer search's fields.

No fields are passed; only the count of results is passed.

Only the first field in the subsearch results.

SplunkCore Certified Advanced Power User

Domain 1Objective 4

Subsearches core-certified-advanced-power-user Practice Questions (Page 4)

Part of the Advanced Search Commands domain, which makes up ~19% of our current practice bank. Splunk does not publish an official question count, but from its 60-minute exam (~25–40 total, ~5–8 in this domain), expect 1–2 from this objective — we provide 29 practice questions to prepare you well beyond it. (estimate)

29questions here

6free pages

12concepts

Questions 16–20

16foundation · easy
What is the default maximum number of results that a subsearch can return?
Select an answer first
17application · medium
An analyst wants to find all events in the 'web' index where the `status` field is 'error' and the `user_id` is in a static list of 5 known bad users. Which approach is most efficient?
Select an answer first
18foundation · easy
Which of the following is a good reason to use a subsearch?
Select an answer first
19foundation · easy
How can the default result limit for a subsearch affect the accuracy of the outer search?
Select an answer first
20foundation · easy
Which fields from a subsearch are passed to the outer search by default?
Select an answer first

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