Quick Answer
The answer is an exception event. This classification applies because the CPU usage has exceeded a defined high threshold, indicating a deviation from normal operation that requires immediate attention. In ITIL 4, the three event types are defined by their severity: informational events confirm normal operations, warning events signal that a threshold is approaching but has not yet been breached, and exception events indicate that a threshold has been exceeded or an abnormal condition exists. On the ITIL 4 Foundation exam, this concept tests your ability to distinguish between proactive warnings and reactive exceptions; a common trap is confusing a warning (which anticipates a problem) with an exception (which confirms a problem has occurred). Remember the memory tip: “Warning is the yellow light, exception is the red light”—if it has already crossed the line, it is an exception.
This ITIL4F practice question tests your understanding of itil management practices. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A monitoring tool detects that the CPU usage on a server has exceeded 90% for 10 minutes. According to ITIL 4, how should this event be classified?
Incident
Why wrong: An incident is a service interruption; this event may lead to an incident, but the event itself is classified differently.
Informational event
Why wrong: Informational events do not require action.
Warning event
Why wrong: A warning event indicates a threshold is nearing, but the threshold has already been exceeded.
Exception event
An exception event indicates a deviation that requires action.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Exception event
An event that indicates a deviation from normal operation and requires attention is classified as an exception event. Informational events are normal operations, and warning events indicate a threshold is approaching but not yet exceeded. The CPU usage exceeding a high threshold is an exception.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Incident
Why it's wrong here
An incident is a service interruption; this event may lead to an incident, but the event itself is classified differently.
Informational event
Why it's wrong here
Informational events do not require action.
Warning event
Why it's wrong here
A warning event indicates a threshold is nearing, but the threshold has already been exceeded.
Exception event
Why this is correct
An exception event indicates a deviation that requires action.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A practitioner preparing for the ITIL4F exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
What to study next
Identify which ITIL4F exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
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FAQ
ITIL Management Practices — This question tests ITIL Management Practices — Read the scenario before looking for a memorised answer..
The correct answer is: Exception event — An event that indicates a deviation from normal operation and requires attention is classified as an exception event. Informational events are normal operations, and warning events indicate a threshold is approaching but not yet exceeded. The CPU usage exceeding a high threshold is an exception.
Identify which ITIL4F exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Read the scenario before looking for a memorised answer.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Same concept, more angles
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. An event monitoring system detects that a server's disk usage has reached 85%. Which type of event is this?
mediumWhy D: An informational event is used to notify that a predefined threshold has been reached but does not require immediate action. In this case, 85% disk usage is a standard monitoring threshold that indicates a normal operational state, not a failure or critical condition. ITIL 4 defines informational events as those that provide awareness of a situation that is within normal operating parameters.
Variation 2. A monitoring tool detects that disk usage on a server has exceeded 90%. According to ITIL 4, what type of event is this?
mediumWhy A: In ITIL 4, an exception event indicates that a service or component has reached a threshold that requires immediate attention, often triggering an incident. Disk usage exceeding 90% is a predefined threshold that signals a deviation from normal operation, making it an exception event rather than a warning or informational event.
Variation 3. A monitoring tool detects that a server's CPU usage has exceeded 90% for 10 minutes. According to ITIL 4, this event is classified as which type?
mediumWhy D: An event that indicates a threshold has been exceeded and may require action is a warning event. Option B is correct. Option A is informational; Option C is exception; Option D is not an event classification.
Last reviewed: Jun 21, 2026
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