ITPEC IP October 2024 Question 59
Which of the following is an appropriate requirement for the availability of an e-mail service in IT service management?
Explanation
Usable anytime except defined maintenance hours — availability is about the service being usable when needed.
Availability means authorized users can use the service when they need it. Stating the service hours and the planned exceptions defines a measurable target, such as an availability percentage agreed in the SLA.
Answer (b)
Why not others:
- •(a) — being usable with only a web browser concerns the access method, a functional or usability requirement, not when the service can be used
- •(c) — preventing other users from reading someone's e-mail without permission is confidentiality
- •(d) — preventing sent e-mail from being falsified is integrity
Key rule: Match the requirement to the property: when the service can be used is availability, who can read the data is confidentiality, and whether it can be altered is integrity.
Service Management · AI-written, may contain errors
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