ISC2 CC Business Continuity, DR & Incident Response Practice Question
Exhibit
DR Drill Report: - Network failover: 5 minutes (success) - Database failover: FAILED (inconsistent data) - Root cause: Asynchronous replication lag caused data mismatch
Refer to the exhibit. Based on the report, which improvement is most appropriate?
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
✓
Switch to synchronous replication
Asynchronous replication can lead to data inconsistency during failover. Switching to synchronous replication ensures data consistency at the cost of some latency.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Increase backup frequency
Why it's wrong here
Backups alone do not prevent inconsistency during failover.
- ✗
Reduce network failover time
Why it's wrong here
Network failover already succeeded; the issue is data consistency.
- ✗
Implement load balancing
Why it's wrong here
Load balancing does not address replication consistency.
- ✓
Switch to synchronous replication
Why this is correct
Synchronous replication guarantees transaction consistency across sites.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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