PK0-005 Practice Question: Basics of IT Infrastructure and IT Project Management
A team is implementing a disaster recovery plan that includes replication to a secondary data center. Which metric should the project manager prioritize defining in the DR plan?
⚠ Common exam trap
Candidates often confuse RTO (time to restore service) with RPO (acceptable data loss), leading candidates to pick RPO because replication inherently involves data synchronization, but the question specifically asks for the metric to prioritize in the DR plan regarding failover speed.
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
✓
Recovery time objective (RTO)
The Recovery Time Objective (RTO) defines the maximum acceptable downtime after a disaster, directly dictating the speed of failover to the secondary data center. In a replication-based DR plan, the RTO determines whether synchronous or asynchronous replication is used and how quickly systems must be brought online. The project manager must prioritize this metric to align recovery speed with business continuity requirements.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Mean time between failures (MTBF)
Why it's wrong here
MTBF measures reliability, not recovery time.
- ✗
Recovery point objective (RPO)
Why it's wrong here
RPO is also important, but RTO is typically the first metric defined for downtime tolerance.
- ✗
Mean time to repair (MTTR)
Why it's wrong here
MTTR is a component of recovery but not the primary planning metric.
- ✓
Recovery time objective (RTO)
Why this is correct
RTO sets the maximum acceptable outage duration, directly driving DR solution design.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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