312-39 Incident Detection And Triage Practice Question
You are configuring a correlation rule in Splunk Enterprise Security. An analyst reports that too many false positives are triggered for 'Multiple Failed Login Attempts'. What is the most effective way to tune this rule?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Increase the threshold for the number of failed attempts within the lookback window.
Risk-based alerting and threshold tuning are standard practices to reduce noise in SIEM correlation rules.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Delete the correlation rule and recreate it.
Why it's wrong here
Deletion is disruptive and does not address the underlying tuning issue.
- ✗
Enable packet capture on all domain controllers.
Why it's wrong here
This is resource-intensive and does not address the rule logic.
- ✗
Change the rule severity to 'Informational'.
Why it's wrong here
This hides the problem without reducing the alert volume.
- ✓
Increase the threshold for the number of failed attempts within the lookback window.
Why this is correct
Increasing the threshold effectively filters out noise while still capturing high-volume attacks.
About these practice questions
Courseiva writes every 312-39 question from scratch — 201 in total, each with an explanation and a wrong-answer breakdown. None are copied from real exams or dumps. Learn why practice questions differ from exam dumps →
JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed August 2026 · checked against the official EC-Council exam blueprint
This 312-39 practice question is part of Courseiva's free EC-Council certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the 312-39 exam.