ITIL4F Key Concepts of ITIL 4 Practice Question
An IT service provider guarantees 99.9% availability for a critical application. This guarantee is an example of which ITIL 4 concept?
⚠ Common exam trap
Many exam-takers confuse 'Warranty' (fitness for use, including availability guarantees) with 'Utility' (fitness for purpose, or what the service does), leading them to incorrectly select Utility when the question explicitly states a performance guarantee.
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
✓
Warranty
A 99.9% availability guarantee defines the service's fitness for use in terms of reliability and performance, which aligns directly with the ITIL 4 concept of 'Warranty'. Warranty ensures that the service will meet agreed-upon conditions such as availability, capacity, continuity, and security, making it the correct choice for this scenario.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Warranty
Why this is correct
Warranty is the assurance that a service meets agreed requirements, covering availability, capacity, continuity and security. The 99.9% availability guarantee is precisely this assurance, distinguishing it from utility, which describes the functionality the service provides to support the consumer's outcomes.
- ✗
Utility
Why it's wrong here
Utility is the functionality a service offers — what it does and whether it is fit for purpose; a 99.9% availability guarantee describes warranty, the assurance of fitness for use. It is tempting because both form the service offering, and utility would be correct when describing the features that enable a customer's required outcomes.
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Risk
Why it's wrong here
Risk is the possible occurrence of an event causing loss or harm, combined with its likelihood; a 99.9% availability guarantee is a committed warranty level, not an uncertainty. It is tempting because availability shortfalls are risks, and risk would be correct when identifying what could prevent the service from meeting that guarantee.
- ✗
Output
Why it's wrong here
An output is a tangible or intangible deliverable produced by an activity; an availability guarantee is a contractual assurance about service performance, not something produced. It is tempting because guarantees appear in service agreements alongside deliverables, and output would be correct when describing what a value stream or practise actually produces.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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