ITIL4F ITIL Management Practices Practice Question
An event that indicates a breach of a threshold is classified as which type?
⚠ Common exam trap
The trap is confusing 'exception event' with 'critical event'—candidates often equate severity with type, but ITIL classifies exception events specifically as threshold breaches, regardless of severity.
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
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Exception event
In ITIL event management, an exception event is defined as an event that indicates a breach of a threshold or a deviation from normal operation. This includes events that signify something is not working as expected, such as a server exceeding CPU threshold or a service becoming unavailable.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
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Critical event
Why it's wrong here
A critical event signifies a severe disruption or failure that has a major impact on service delivery or business operations, often leading to a major incident or disaster. Unlike a simple threshold breach, a critical event implies a significant loss of functionality, data, or availability, demanding immediate, high-priority intervention to restore services. It represents an actual or imminent failure with widespread consequences, not merely an indicator that a performance metric has been exceeded.
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Exception event
Why this is correct
An exception event is specifically generated when a predefined operational or performance threshold has been violated, indicating a deviation from the expected or acceptable state of a service or component. This type of event signals that a specific metric, such as CPU utilization, memory usage, or response time, has crossed its upper or lower limit. It requires attention because it represents an actual breach, potentially impacting service quality or stability, and often triggers an alert for investigation.
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Warning event
Why it's wrong here
A warning event serves as a proactive notification that a specific performance or operational metric is approaching a predefined threshold, indicating a potential future issue if no action is taken. Its purpose is to provide an early alert, allowing IT teams to investigate and intervene to prevent a full breach or service degradation from occurring. This type of event signals an impending condition, offering an opportunity for preventative measures rather than reacting to an already violated limit.
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Informational event
Why it's wrong here
An informational event records routine operational activities or status updates within an IT system, typically indicating normal system behavior or successful completion of tasks. These events are generally non-urgent and do not signify any deviation from expected performance or a breach of any operational threshold. They are primarily used for auditing, logging, and understanding the normal flow of operations rather than alerting to problems.
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Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed September 2026 · checked against the official PeopleCert exam blueprint
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