ITPEC FE Subject A April 2026 Question 43
ITPEC FE Subject A April 2026 — Question 43 of 60
A system whose failure has a significant impact on corporate activities and society.
Mission-critical describes the consequence of failure, not the technology. Banking settlement, airline reservation, power grid control and telecom switching qualify because an outage stops the business and reaches beyond it.
Answer (b)
Why not others:
- (a) — an operating system is indispensable infrastructure, but "indispensable to run other software" is not the same as "failure damages the business and society"
- (c) — describes a pilot installation, a rollout strategy rather than a property of the system
- (d) — describes a system running near its performance limit, a capacity concern
Key rule: Classify by asking what happens when it stops. If the answer is measured in business and social damage rather than inconvenience, the system is mission-critical.
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