ISC2 CC Business Continuity, DR & Incident Response Practice Question
A company's business continuity plan requires a maximum tolerable downtime of 2 hours for the ERP system. The current backup process takes 3 hours to restore. Which of the following is the BEST corrective action?
⚠ Common exam trap
ISC2 often tests the distinction between RTO and RPO, and the trap here is that candidates confuse backup frequency (which affects RPO) with restore speed (which affects RTO), leading them to incorrectly choose Option B.
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
✓
Implement synchronous replication
The maximum tolerable downtime (MTD) is 2 hours, but the current restore process takes 3 hours, which exceeds the MTD. Synchronous replication writes data to both primary and secondary storage simultaneously, ensuring that the secondary copy is always current and can be failed over to in seconds or minutes, not hours. This reduces the recovery time objective (RTO) to well under the required 2 hours, directly addressing the gap.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Reduce RTO to 1 hour
Why it's wrong here
Simply stating a lower RTO does not change the actual recovery capability.
- ✗
Increase backup frequency
Why it's wrong here
More frequent backups do not speed up the restore process.
- ✓
Implement synchronous replication
Why this is correct
Synchronous replication ensures data is mirrored in real-time, allowing near-instant failover.
- ✗
Perform restoration testing quarterly
Why it's wrong here
Testing verifies capability but does not reduce restore time.
Go deeper
Related to this question
Learn chapter
Business Continuity and Disaster Recovery
Key term
Business continuity
Business continuity is the capability of an organization to continue delivering essential services during and after a disruptive event.
Key term
MTD
MTD (Maximum Tolerable Downtime) is the longest period a business can function without a specific system or service before the damage becomes unacceptable.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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.