XDR-Engineer Detection And Reporting Practice Question
An administrator is designing a custom Alert-based BIOC rule in Cortex XDR. The requirement is to trigger an alert only when three distinct failed login events occur within a 5-minute window from the same source IP address. How should the aggregation and time window be configured?
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
✓
Set the threshold count to 3, group by source IP address, and set the time window to 5 minutes.
Alert-based BIOC rules support aggregation and grouping by specific fields with a sliding time window to detect threshold breaches.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Set the threshold count to 3, group by source IP address, and set the time window to 5 minutes.
Why this is correct
Correct. Grouping by source IP with a count threshold of 3 over a 5-minute window precisely fulfills the detection requirement.
- ✗
Set the threshold count to 5, group by event ID, and set the time window to 3 minutes.
Why it's wrong here
Incorrect. This reverses the threshold count and time window values.
- ✗
Configure a BIOC rule using a single event trigger with a recurrence limit set to 3.
Why it's wrong here
Incorrect. Single event triggers with recurrence limits do not properly aggregate across distinct sliding time windows based on grouping keys.
- ✗
Use XQL correlation rules instead, because BIOC rules cannot evaluate time-based thresholds.
Why it's wrong here
Incorrect. BIOC rules natively support threshold and grouping capabilities.
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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 Palo Alto Networks exam blueprint
This XDR-Engineer practice question is part of Courseiva's free Palo Alto Networks 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 XDR-Engineer exam.