Quick Answer
The answer is Recovery Time Objective (RTO). This metric defines the maximum acceptable duration that a system or application can be unavailable following a disruption, directly specifying the 2-hour restoration target in the scenario. On the ISC2 Certified in Cybersecurity CC exam, this concept tests your understanding of business continuity planning (BCP) metrics, often appearing in questions that distinguish RTO from Recovery Point Objective (RPO)—a common trap where candidates confuse time-to-restore with data-loss tolerance. The RTO drives the design of failover and recovery strategies, as it dictates how quickly infrastructure must be rebuilt or switched. A useful memory tip: think of RTO as “Restore Time Objective”—the clock starts ticking the moment the system goes down, and the goal is to beat that deadline.
This CC practice question tests your understanding of business continuity, dr & incident response. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A company's BCP requires that critical systems be restored within 2 hours of disruption. Which metric defines this?
Mean Time to Repair (MTTR)
Why wrong: MTTR is an average repair time metric, not a target for recovery.
Recovery Time Objective (RTO)
RTO specifies the maximum acceptable downtime for a system.
Service Level Agreement (SLA)
Why wrong: SLA is a contractual agreement, not a specific recovery metric.
Recovery Point Objective (RPO)
Why wrong: RPO defines the acceptable data loss in terms of time.
Answer choices
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 time that a system or application can be unavailable after a disruption. In this scenario, the requirement to restore critical systems within 2 hours directly specifies the RTO. It is a key metric in business continuity planning that drives the design of failover and recovery strategies.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Mean Time to Repair (MTTR)
Why it's wrong here
MTTR is an average repair time metric, not a target for recovery.
Recovery Time Objective (RTO)
Why this is correct
RTO specifies the maximum acceptable downtime for a system.
Related concept
Read the scenario before looking for a memorised answer.
Service Level Agreement (SLA)
Why it's wrong here
SLA is a contractual agreement, not a specific recovery metric.
Recovery Point Objective (RPO)
Why it's wrong here
RPO defines the acceptable data loss in terms of time.
Common exam traps
ISC2 often tests the distinction between RTO and RPO, where candidates confuse the time to restore service (RTO) with the acceptable data loss window (RPO).
Detailed technical explanation
RTO is a forward-looking metric that dictates how quickly infrastructure must be brought online, influencing choices like hot standby vs. cold standby architectures. For example, an RTO of 2 hours might require automated failover scripts and pre-warmed virtual machines, while a longer RTO could allow manual restoration from backups. The RTO is often validated through regular disaster recovery drills to ensure the actual recovery time meets the target.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A developer is choosing between AES-256 (symmetric) and RSA-2048 (asymmetric) for encrypting a large file that will be sent to a partner. Symmetric encryption is fast but requires key exchange; asymmetric is slower but solves the key distribution problem. A hybrid approach — encrypt the file with AES, encrypt the AES key with RSA — is standard. Questions like this test whether you understand when each approach applies.
What to study next
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Business Continuity, DR & Incident Response — study guide chapter
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FAQ
Business Continuity, DR & Incident Response — This question tests Business Continuity, DR & Incident Response — Read the scenario before looking for a memorised answer..
The correct answer is: Recovery Time Objective (RTO) — The Recovery Time Objective (RTO) defines the maximum acceptable time that a system or application can be unavailable after a disruption. In this scenario, the requirement to restore critical systems within 2 hours directly specifies the RTO. It is a key metric in business continuity planning that drives the design of failover and recovery strategies.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 30, 2026
This CC practice question is part of Courseiva's free ISC2 certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the CC exam.
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