ITPEC FE Subject A April 2025 Question 44
ITPEC FE Subject A April 2025 — Question 44 of 60
In business continuity planning, three key metrics define recovery targets:
- •MTD (Maximum Tolerable Downtime) — the absolute longest a business can survive an outage before irreversible damage occurs
- •RTO (Recovery Time Objective) — target time to restore the system after a failure
- •RPO (Recovery Point Objective) — maximum acceptable data loss measured in time before the failure
The fundamental rule is: RPO ≤ RTO ≤ MTD
RTO must always be less than MTD — otherwise the recovery plan cannot prevent business-critical damage.
Why not others:
- (a) MTD < RPO — reversed; RPO must be smaller than MTD, not larger
- (b) MTD < RTO — reversed; RTO must be smaller than MTD, not larger
- (c) RPO < MTD — mathematically true but RTO < MTD is the primary relationship tested in service management
Key rule: MTD is the ceiling — both RTO and RPO must fit under it, with RPO ≤ RTO < MTD.
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