SOA-C02 Deployment, Provisioning, and Automation Practice Question
A SysOps administrator is implementing an automated backup solution for Amazon RDS databases. The solution must support point-in-time recovery and cross-region disaster recovery. Which TWO AWS services or features should be used?
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
✓
Automated backups with a retention period.
Automated backups (Option C) enable point-in-time recovery within a specified retention period, meeting the backup requirement. Automated cross-region snapshot copy (Option E) provides cross-region disaster recovery by automatically copying snapshots to another AWS region. Manual DB snapshots (Option A) are not automated, so they do not satisfy the automation requirement. Cross-region read replicas (Option B) are designed for read scaling and do not serve as a backup solution. Amazon S3 lifecycle policies (Option D) are used for managing object storage, not for RDS backup automation.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Manual DB snapshots.
Why it's wrong here
Manual DB snapshots, while useful for creating a known-good backup at a specific point in time, require an administrator to explicitly initiate the snapshot operation through the console, CLI, or API. They are not automated by default and do not provide the continuous, scheduled backup capability that the scenario demands; relying on them would introduce a manual process that could be skipped or delayed, undermining the reliability of the backup strategy.
- ✗
Cross-region read replicas.
Why it's wrong here
Cross-region read replicas are primarily designed to offload read traffic and improve application read latency by maintaining an asynchronous copy of the source DB instance in another Region. Although read replicas can be manually promoted to a standalone instance in a disaster, they do not serve as a backup mechanism because they inherit the source's data changes in near-real-time and are subject to replication lag; they lack the versioned, restorable snapshot history that a true backup solution provides.
- ✓
Automated backups with a retention period.
Why this is correct
Automated backups with a retention period enable RDS to automatically perform daily backups and capture transaction logs every five minutes, allowing point-in-time recovery to any second within the configured retention window (default 7 days, maximum 35 days). This option is technically valid for automated backups, but it is confined to a single Region; it does not provide cross-Region durability or disaster recovery, so it fails the specific requirement for a backup copy stored in a different geographical location.
- ✗
Amazon S3 lifecycle policies.
Why it's wrong here
Amazon S3 lifecycle policies are designed to manage the lifecycle of objects stored in S3 buckets, such as transitioning data to S3 Standard-IA, Glacier, or deleting objects after a defined period. They do not interact with RDS snapshots because RDS backup data is managed internally by the RDS service and is not directly accessible as S3 objects; applying an S3 lifecycle policy would have no effect on RDS backup retention or cross-Region replication.
- ✓
Automated cross-region snapshot copy.
Why this is correct
Automated cross-region snapshot copy enables RDS to copy DB snapshots and automated backups to a designated destination Region without manual intervention. This is the correct answer because it provides a scheduled, hands-off replication of backup data to a separate geographic Region, satisfying both the automation and disaster recovery requirements of the backup strategy.
Quick reference
AWS S3 Storage Class Comparison
| Storage Class | Min Duration | Retrieval | Use Case |
|---|---|---|---|
| S3 Standard | None | Immediate | Frequently accessed data |
| S3 Standard-IA | 30 days | Immediate | Infrequent access, rapid retrieval |
| S3 One Zone-IA | 30 days | Immediate | Non-critical infrequent data |
| S3 Intelligent-Tiering | None | Immediate–hours | Unknown or changing access patterns |
| S3 Glacier Instant | 90 days | Milliseconds | Archive with instant retrieval |
| S3 Glacier Flexible | 90 days | Minutes–hours | Archive, flexible retrieval |
| S3 Glacier Deep Archive | 180 days | Hours | Long-term compliance archive |
Go deeper
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This SOA-C02 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 SOA-C02 exam.