Troubleshooting practice questions

A Splunk administrator is troubleshooting a slow search that uses the transaction command. The search correlates events by 'user_uuid' with a maxspan of 1 hour. The administrator suspects that many orphan events (events that never complete a transaction) are causing performance issues. Which approach can help identify and possibly exclude orphan events from the transaction?

Trap 1: Increase maxspan to allow more events to complete.

Increasing maxspan may include more events but does not specifically address orphans and could worsen performance.

Trap 2: Use the 'mvlist' option to list all user_uuid values.

mvlist is not a valid transaction option.

Trap 3: Add 'closed_txn=1' to the transaction command to only output…

closed_txn is not a valid transaction option.

A
Increase maxspan to allow more events to complete.
Why wrong: Increasing maxspan may include more events but does not specifically address orphans and could worsen performance.
B
Use the 'mvlist' option to list all user_uuid values.
Why wrong: mvlist is not a valid transaction option.
C
Use the 'keepevicted=true' option and then filter out evicted events in a subsequent search.
keepevicted=true preserves events that were not included in any transaction, allowing you to analyze or exclude them.
D
Add 'closed_txn=1' to the transaction command to only output complete transactions.
Why wrong: closed_txn is not a valid transaction option.

Question 2mediummulti select

A Splunk administrator is troubleshooting a search that uses the `transaction` command. The search is taking too long to complete and returning incomplete results. Which TWO changes are most likely to improve performance and accuracy of transaction searches? (Choose TWO.)

Trap 1: Remove the `maxspan` parameter to allow transactions of any…

Removing maxspan can cause very long transactions, increasing memory and time.

Trap 2: Use `mvcombine` to combine multivalued fields before the…

mvcombine is not relevant to transaction performance.

Trap 3: Increase the `maxevents` value to allow more events per transaction.

Increases memory usage and may worsen performance.

A
Remove the `maxspan` parameter to allow transactions of any duration.
Why wrong: Removing maxspan can cause very long transactions, increasing memory and time.
B
Use `mvcombine` to combine multivalued fields before the transaction.
Why wrong: mvcombine is not relevant to transaction performance.
C
Use `fields` before `transaction` to include only necessary fields.
Reduces data volume processed by transaction.
D
Increase the `maxevents` value to allow more events per transaction.
Why wrong: Increases memory usage and may worsen performance.
E
Set an appropriate `maxspan` value based on the expected duration of correlated events.
Limits the time window for grouping, improving performance and preventing runaway transactions.

Question 3mediummultiple choice

A Splunk administrator is troubleshooting a slow dashboard that uses a timechart with a large dataset. Which of the following is a best practice to improve performance?

Trap 1: Increase the number of concurrent searches

Concurrent searches do not improve the speed of a single search.

Trap 2: Use the eval command to add fields

Adding eval commands increases processing time.

Trap 3: Increase the search bucket count

More buckets can increase overhead; not a best practice for performance.

A
Increase the number of concurrent searches
Why wrong: Concurrent searches do not improve the speed of a single search.
B
Use the eval command to add fields
Why wrong: Adding eval commands increases processing time.
C
Use data model acceleration
Data model acceleration speeds up searches on data models significantly.
D
Increase the search bucket count
Why wrong: More buckets can increase overhead; not a best practice for performance.

Question 4hardmulti select

An admin is troubleshooting a saved search that uses the `| `my_macro` command. The macro definition is `stats count by $1$`. The saved search is scheduled to run hourly. Which of the following issues could cause the saved search to fail? (Choose three.)

Trap 1: The saved search's time range is set to 'All time'

Incorrect: 'All time' may not cause failure, though it can be resource-intensive.

Trap 2: The saved search has a cron schedule that overlaps with another…

Incorrect: Overlap may cause skip but not failure.

A
The macro argument passed in the saved search contains a space without quotes
Correct: Spaces in arguments require quoting.
B
The macro definition includes a pipe at the start but the invocation also includes a pipe
Correct: Double pipe results in syntax error.
C
The saved search's time range is set to 'All time'
Why wrong: Incorrect: 'All time' may not cause failure, though it can be resource-intensive.
D
The macro is not shared to the app where the saved search is stored
Correct: Macro must be accessible to the saved search's app.
E
The saved search has a cron schedule that overlaps with another saved search
Why wrong: Incorrect: Overlap may cause skip but not failure.

Question 5mediummultiple choice

An admin notices that a saved search with a scheduled alert is not triggering as expected even though the search returns results. The search uses a macro with arguments. Which troubleshooting step should the admin take first?

Trap 1: Ensure that the macro name does not conflict with existing commands…

Conflict is possible but less likely than syntax error.

Trap 2: Verify the macro's permissions are set to global.

Permissions are important but not the first step if it was recently defined.

Trap 3: Check the search head's job inspector for the expanded search…

Job inspector shows the executed search; it's a good step but not first.

A
Ensure that the macro name does not conflict with existing commands or other macros.
Why wrong: Conflict is possible but less likely than syntax error.
B
Review the macro definition for syntax errors, such as missing brackets or incorrect argument references.
Macro syntax errors are a common cause of search failure.
C
Verify the macro's permissions are set to global.
Why wrong: Permissions are important but not the first step if it was recently defined.
D
Check the search head's job inspector for the expanded search string.
Why wrong: Job inspector shows the executed search; it's a good step but not first.

Question 6hardmultiple choice

A Splunk admin is troubleshooting a transaction that groups firewall allow and deny events by session ID. The transaction should end when a deny event occurs for that session. Which transaction option should be used to define the end condition?

Trap 1: endswith="action=allow"

Incorrect: This would end on allow, which is opposite of the requirement.

Trap 2: startswith="action=deny"

Incorrect: This defines the start condition, not the end.

Trap 3: maxevents=2

Incorrect: This limits the number of events per transaction, not the end condition.

A
endswith="action=allow"
Why wrong: Incorrect: This would end on allow, which is opposite of the requirement.
B
startswith="action=deny"
Why wrong: Incorrect: This defines the start condition, not the end.
C
endswith="action=deny"
Correct: This ends the transaction when a deny event is encountered.
D
maxevents=2
Why wrong: Incorrect: This limits the number of events per transaction, not the end condition.

Question 7hardmultiple choice

A Splunk administrator is troubleshooting a search that uses the transaction command to group login and logout events. The search runs but returns no results even though both types of events exist. The events are separated by at most 5 minutes. The current transaction command is:

`index=auth (action=login OR action=logout) | transaction action maxspan=10m maxpause=2s`

What is the most likely cause?

Trap 1: The maxspan value is too large, causing events to be grouped…

maxspan is the maximum total duration; 10 minutes is reasonable.

Trap 2: The transaction command requires the connected=true argument to…

connected=true is the default; changing it would affect ordering but not grouping.

Trap 3: The transaction command requires keepevents=true to retain all…

keepevents only affects whether raw events are appended; missing events is not the issue.

A
The maxspan value is too large, causing events to be grouped incorrectly.
Why wrong: maxspan is the maximum total duration; 10 minutes is reasonable.
B
The transaction command requires the connected=true argument to group events.
Why wrong: connected=true is the default; changing it would affect ordering but not grouping.
C
The transaction command requires keepevents=true to retain all events.
Why wrong: keepevents only affects whether raw events are appended; missing events is not the issue.
D
The maxpause value is too small; events may be more than 2 seconds apart.
maxpause sets the maximum time between events in a transaction; 2 seconds may be too restrictive.