Quick Answer
The answer is Aurora Global Database, as it is the only AWS database service configuration that can simultaneously deliver a Recovery Time Objective of 15 minutes and a Recovery Point Objective of 1 minute for cross-region disaster recovery. This is achieved through its storage-level asynchronous replication, which maintains sub-second RPO across regions, and its built-in failover mechanism that promotes a secondary region to primary in minutes, meeting the strict RTO. On the AWS Certified DevOps Engineer Professional DOP-C02 exam, this question tests your understanding of how Aurora Global Database differs from single-region solutions like RDS Multi-AZ, which cannot survive a regional outage, and from DynamoDB global tables, which offer sub-second RPO but often fail to guarantee the 15-minute RTO due to application-level recovery complexities. A common trap is confusing DynamoDB global tables’ low RPO with meeting the full RTO requirement. Memory tip: think “Global Aurora, global failover” — if you need cross-region DR with both low RTO and low RPO, Aurora Global Database is the only answer.
This DOP-C02 practice question tests your understanding of resilient cloud solutions. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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 company is designing a disaster recovery strategy for a critical application. They need a Recovery Time Objective (RTO) of 15 minutes and a Recovery Point Objective (RPO) of 1 minute. Which AWS database service configuration meets these requirements?
RDS MySQL with Multi-AZ and cross-region read replica
Why wrong: Cross-region replication is asynchronous; RPO may be minutes.
DynamoDB global tables
Why wrong: RPO is sub-second, but RTO may exceed 15 minutes.
Aurora Global Database
Typical RTO < 1 min, RPO sub-second.
RDS PostgreSQL with cross-region read replica
Why wrong: Asynchronous replication; RPO may be >1 minute.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Aurora Global Database
Aurora Global Database provides cross-region replication with sub-second RPO and failover in minutes. Option A is wrong because RDS Multi-AZ is single-region. Option B is wrong because DynamoDB global tables have sub-second RPO but may not meet RTO. Option D is wrong because read replicas have higher RPO.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
RDS MySQL with Multi-AZ and cross-region read replica
Why it's wrong here
Cross-region replication is asynchronous; RPO may be minutes.
DynamoDB global tables
Why it's wrong here
RPO is sub-second, but RTO may exceed 15 minutes.
Aurora Global Database
Why this is correct
Typical RTO < 1 min, RPO sub-second.
Related concept
Read the scenario before looking for a memorised answer.
RDS PostgreSQL with cross-region read replica
Why it's wrong here
Asynchronous replication; RPO may be >1 minute.
Common exam traps
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
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.
What to study next
Identify which DOP-C02 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
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FAQ
Resilient Cloud Solutions — This question tests Resilient Cloud Solutions — Read the scenario before looking for a memorised answer..
The correct answer is: Aurora Global Database — Aurora Global Database provides cross-region replication with sub-second RPO and failover in minutes. Option A is wrong because RDS Multi-AZ is single-region. Option B is wrong because DynamoDB global tables have sub-second RPO but may not meet RTO. Option D is wrong because read replicas have higher RPO.
Identify which DOP-C02 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 20, 2026
This DOP-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 DOP-C02 exam.
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