CISA Practice Question: Information Systems Operations and Business Resilience
An organization's IT service desk categorizes incidents based on severity levels. A P1 incident is defined as a critical system outage affecting all users. Which of the following is the MOST appropriate target for the initial response time for a P1 incident?
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
✓
Within 15 minutes
P1 incidents are critical and require immediate response, typically within minutes, not hours.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Within 15 minutes
Why this is correct
Immediate response is expected for critical incidents.
- ✗
Within 4 hours
Why it's wrong here
Too long for a critical P1 incident.
- ✗
Within 1 business day
Why it's wrong here
Inappropriate for a critical outage.
- ✗
Within 30 minutes
Why it's wrong here
15 minutes is more typical for P1.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This CISA practice question is part of Courseiva's free ISACA 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 CISA exam.