312-39 Incident Detection And Triage Practice Question
In ArcSight, a correlation rule is failing to trigger despite matching event patterns. You verify the filter logic is correct. What is the most likely cause?
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
✓
The aggregation window is configured incorrectly.
Event aggregation settings can prevent rules from firing if the conditions are too restrictive.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
The parser is disabled.
Why it's wrong here
This would prevent event ingestion entirely.
- ✗
The user interface is loading slowly.
Why it's wrong here
UI latency does not affect backend correlation.
- ✓
The aggregation window is configured incorrectly.
Why this is correct
If the aggregation window is too small, events may not be counted correctly.
- ✗
The license has expired.
Why it's wrong here
This would stop all processing.
About these practice questions
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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.