- A
Use cross-Region Read Replicas with automatic failover.
Why wrong: Asynchronous replication may cause data loss.
- B
Use Amazon Aurora Global Database with MySQL compatibility.
Aurora Global Database provides low-latency replication and fast failover across Regions.
- C
Use a Multi-AZ RDS instance with a standby in another Region.
Why wrong: Multi-AZ is only within one Region.
- D
Use AWS Database Migration Service for continuous replication.
Why wrong: DMS is not designed for low-RTO failover.
Question 1,388 of 1,746
SAP-C02 Practice Question: Design Solutions for Organizational Complexity
This SAP-C02 practice question tests your understanding of design solutions for organizational complexity. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. 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 global company has a multi-region AWS deployment. They need to share a single Amazon RDS for MySQL database across multiple AWS Regions for disaster recovery. The database must have minimal data loss and RTO of less than 1 minute. Which solution meets these requirements?
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
✓
Use Amazon Aurora Global Database with MySQL compatibility.
Amazon Aurora Global Database with MySQL compatibility is designed for cross-Region disaster recovery with a Recovery Time Objective (RTO) of less than 1 minute and minimal data loss (typically sub-second). It uses storage-based replication that is asynchronous but with very low latency, and it supports a managed failover process that promotes a secondary Region to primary in under a minute, meeting the strict RTO requirement.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Use cross-Region Read Replicas with automatic failover.
Why it's wrong here
Asynchronous replication may cause data loss.
- ✓
Use Amazon Aurora Global Database with MySQL compatibility.
Why this is correct
Aurora Global Database provides low-latency replication and fast failover across Regions.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Use a Multi-AZ RDS instance with a standby in another Region.
Why it's wrong here
Multi-AZ is only within one Region.
- ✗
Use AWS Database Migration Service for continuous replication.
Why it's wrong here
DMS is not designed for low-RTO failover.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse Multi-AZ (which is intra-Region) with cross-Region disaster recovery, or assume that cross-Region Read Replicas can achieve sub-minute RTO without understanding the manual promotion and DNS propagation delays inherent in that approach.
Detailed technical explanation
How to think about this question
Aurora Global Database uses a dedicated storage layer that replicates data at the storage level across Regions, achieving typical replication lag of under 1 second. The failover process involves promoting a secondary cluster to the primary role using a single API call or the AWS Management Console, which completes in about 1 minute because it only updates the cluster endpoint and does not require rebuilding the storage. In a real-world scenario, this allows a company to maintain a warm standby in another continent, ensuring business continuity even during a full Region outage.
KKey Concepts to Remember
- Read the scenario before looking for a memorised answer.
- Find the constraint that changes the correct option.
- Eliminate answers that are true in general but not in this case.
TExam Day Tips
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A media company stores terabytes of video archives that are accessed once a year for audit purposes. Moving these objects to a cold storage tier (Azure Archive, S3 Glacier, or Google Nearline) costs a fraction of hot storage. Questions like this test whether you understand storage tiers, access frequency tradeoffs, and retrieval latency requirements.
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 |
What to study next
Got this wrong? Here's your next step.
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Design Solutions for Organizational Complexity — study guide chapter
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FAQ
Questions learners often ask
What does this SAP-C02 question test?
Design Solutions for Organizational Complexity — This question tests Design Solutions for Organizational Complexity — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Use Amazon Aurora Global Database with MySQL compatibility. — Amazon Aurora Global Database with MySQL compatibility is designed for cross-Region disaster recovery with a Recovery Time Objective (RTO) of less than 1 minute and minimal data loss (typically sub-second). It uses storage-based replication that is asynchronous but with very low latency, and it supports a managed failover process that promotes a secondary Region to primary in under a minute, meeting the strict RTO requirement.
What should I do if I get this SAP-C02 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Last reviewed: Jul 4, 2026
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