DEA-C01 Data Operations and Support Practice Question
A data engineer is designing a disaster recovery plan for an Amazon Redshift data warehouse. The cluster is in us-east-1 and must be recoverable in us-west-2 with minimal data loss. Which THREE actions should the engineer take? (Choose THREE)
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
✓
Create manual snapshots and copy them to us-west-2
Options A, D, and E are correct. To recover an Amazon Redshift cluster in a different region (us-west-2) from us-east-1, you need to have snapshots available in the target region. Manual snapshots (option A) can be copied to us-west-2 and are retained even if the cluster is deleted. Automated snapshots with a retention period (option D) ensure regular backups, and by configuring automated snapshot copy to us-west-2 (option E), these snapshots are automatically replicated to the target region for cross-region recovery. Option B (multi-AZ) provides high availability within a single region but does not help with cross-region disaster recovery. Option C (concurrent scaling) improves query performance under load, not disaster recovery.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Create manual snapshots and copy them to us-west-2
Why this is correct
Manual snapshots can be copied across regions.
- ✗
Deploy Redshift in a multi-AZ configuration
Why it's wrong here
Multi-AZ is within a region, not cross-region.
- ✗
Enable Redshift concurrent scaling
Why it's wrong here
For performance, not disaster recovery.
- ✓
Schedule automated snapshots with a retention period
Why this is correct
Allows point-in-time recovery.
- ✓
Configure automated snapshot copy to us-west-2
Why this is correct
Enables cross-region recovery.
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Variation 1. A data engineer is designing a disaster recovery strategy for an Amazon Redshift data warehouse. The RPO (Recovery Point Objective) is 1 hour, and the RTO (Recovery Time Objective) is 2 hours. Which approach meets these requirements with the least operational overhead?
easy- A.Set up a secondary Redshift cluster in another region and use AWS DMS for continuous replication.
- ✓ B.Configure automated cross-region snapshot copy to another region.
- C.Export the data to S3 daily using UNLOAD and copy to another region.
- D.Enable automated snapshots with a retention period of 1 day.
Why B: Automated cross-region snapshot copy in Amazon Redshift provides scheduled snapshots copied to another region, enabling recovery within minutes. With a snapshot interval of 1 hour, RPO ≤1 hour is met. Restoring from a cross-region snapshot typically completes within 1-2 hours, meeting the 2-hour RTO. This approach is built-in with minimal manual intervention, offering the least operational overhead compared to setting up DMS replication (complex, costly) or daily UNLOAD exports (violates RPO). Local snapshots (Option D) do not protect against region failure and thus fail the DR requirement.
JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This DEA-C01 practice question is part of Courseiva's free Amazon Web Services 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 DEA-C01 exam.