What is the primary goal of tuning a detection rule after it has been deployed?

To make the detection run faster

To reduce false positives and improve accuracy

To increase the number of alerts

A detection rule for 'unusual outbound network connections' has been in production for two weeks. The security team notices that the rule generates a high volume of alerts, most of which are false positives from legitimate backup software. What should the team do to improve the rule's accuracy?

Disable the rule until the backup software is updated.

Add a filter to exclude traffic from the backup server's IP addresses.

Increase the rule's severity to ensure the alerts are not ignored.

Change the rule to look for all outbound connections, not just unusual ones.

A detection engineer has developed a new correlation search that uses a lookup file containing a list of known malicious IP addresses. The engineer is ready to deploy it to production. Which step is essential to ensure the detection works correctly in the production environment?

Add the search to the 'Security' app in Splunk.

Ensure the search is scheduled to run every hour.

Create a dashboard to visualize the results of the search.

Verify that the lookup file is accessible and correctly formatted in the production Splunk environment.

What is a key consideration when deploying a detection into a production environment?

Changing the detection's hypothesis

Ensuring proper configuration and integration with existing security tools

SplunkCertified Cybersecurity Defense Engineer

Domain 2Objective 5

Create and Maintain a Detection Lifecycle. CYBERSECURITY-DEFENSE-ENGINEER Practice Questions (Page 3)

Part of the Detection Engineering domain, which accounts for 40% of the CYBERSECURITY-DEFENSE-ENGINEER exam. Splunk does not publish an official question count, but from its 75-minute exam (~30–50 total, ~12–20 in this domain), expect 2–4 from this objective — we provide 25 practice questions to prepare you well beyond it. (estimate)

25questions here

5free pages

6concepts

40%of the exam

Questions 11–15

11foundation · easy
What is the primary goal of tuning a detection rule after it has been deployed?
Select an answer first
12application · medium
A detection rule for 'unusual outbound network connections' has been in production for two weeks. The security team notices that the rule generates a high volume of alerts, most of which are false positives from legitimate backup software. What should the team do to improve the rule's accuracy?
Select an answer first
13application · medium
A detection engineer has developed a new correlation search that uses a lookup file containing a list of known malicious IP addresses. The engineer is ready to deploy it to production. Which step is essential to ensure the detection works correctly in the production environment?
Select an answer first
14foundation · easy
Which phase of the detection lifecycle involves analyzing alert volumes and adjusting thresholds to reduce false positives?
Select an answer first
15foundation · easy
What is a key consideration when deploying a detection into a production environment?
Select an answer first

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