- A
RDS MySQL with Multi-AZ and cross-region read replica
Why wrong: Cross-region replication is asynchronous; RPO may be minutes.
- B
DynamoDB global tables
Why wrong: RPO is sub-second, but RTO may exceed 15 minutes.
- C
Aurora Global Database
Typical RTO < 1 min, RPO sub-second.
- D
RDS PostgreSQL with cross-region read replica
Why wrong: Asynchronous replication; RPO may be >1 minute.
Question 1,214 of 1,750
DOP-C02 Resilient Cloud Solutions Practice Question
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?
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
✓
Aurora Global Database
Aurora Global Database provides a fully managed cross-region disaster recovery solution with typical RPO of 1 second and RTO of 1 minute for regional failover, which meets the required RTO of 15 minutes and RPO of 1 minute. It uses storage-level replication that is asynchronous but very low-latency, and failover can be promoted to the secondary region in under a minute.
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.
- ✗
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
Common exam trap: answer the scenario, not the keyword
Common misconception: Any cross-region read replica (like RDS MySQL or PostgreSQL) can achieve sub-minute RPO and RTO. In reality, manual promotion steps and asynchronous replication lag make them unsuitable for strict 15-minute RTO and 1-minute RPO requirements. Aurora Global Database's storage-level replication achieves RPO of 1 second and RTO under 1 minute, meeting the requirements.
Detailed technical explanation
How to think about this question
Aurora Global Database uses a dedicated storage layer that replicates data asynchronously across regions with a typical lag of under 1 second, and failover is initiated by promoting the secondary cluster via a single API call or AWS Console action, which completes in about 1 minute. Under the hood, it leverages Aurora's distributed storage volumes that continuously replicate to the secondary region using a log-based replication protocol, avoiding the need for binary log shipping or manual snapshot restores. In a real-world scenario, if the primary region experiences a full outage, the secondary region can be promoted with zero data loss in most cases, making it suitable for critical applications with strict RPO/RTO requirements.
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.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
- →
Resilient Cloud Solutions — study guide chapter
Learn the concepts, then practise the questions
- →
Resilient Cloud Solutions practice questions
Targeted practice on this topic area only
- →
All DOP-C02 questions
1,750 questions across all exam domains
- →
AWS Certified DevOps Engineer Professional DOP-C02 study guide
Full concept coverage aligned to exam objectives
- →
DOP-C02 practice test guide
How to use practice tests most effectively before exam day
Related practice questions
Related DOP-C02 practice-question pages
Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.
Configuration Management and IaC practice questions
Practise DOP-C02 questions linked to Configuration Management and IaC.
Resilient Cloud Solutions practice questions
Practise DOP-C02 questions linked to Resilient Cloud Solutions.
Monitoring and Logging practice questions
Practise DOP-C02 questions linked to Monitoring and Logging.
Incident and Event Response practice questions
Practise DOP-C02 questions linked to Incident and Event Response.
Security and Compliance practice questions
Practise DOP-C02 questions linked to Security and Compliance.
SDLC Automation practice questions
Practise DOP-C02 questions linked to SDLC Automation.
DOP-C02 fundamentals practice questions
Practise DOP-C02 questions linked to DOP-C02 fundamentals.
DOP-C02 scenario practice questions
Practise DOP-C02 questions linked to DOP-C02 scenario.
DOP-C02 troubleshooting practice questions
Practise DOP-C02 questions linked to DOP-C02 troubleshooting.
Practice this exam
Start a free DOP-C02 practice session
Short sessions build daily habit. Longer sessions build exam-day stamina. Try a timed session to simulate real conditions.
FAQ
Questions learners often ask
What does this DOP-C02 question test?
Resilient Cloud Solutions — This question tests Resilient Cloud Solutions — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Aurora Global Database — Aurora Global Database provides a fully managed cross-region disaster recovery solution with typical RPO of 1 second and RTO of 1 minute for regional failover, which meets the required RTO of 15 minutes and RPO of 1 minute. It uses storage-level replication that is asynchronous but very low-latency, and failover can be promoted to the secondary region in under a minute.
What should I do if I get this DOP-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.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Keep practising
More DOP-C02 practice questions
- A company uses AWS CodePipeline with a multi-branch strategy. A new feature branch triggers a pipeline that runs unit te…
- A development team uses AWS CodeBuild to compile a Java application and run unit tests. The build takes 30 minutes, but…
- A company uses AWS CodePipeline with multiple stages: Source (Amazon S3), Build (AWS CodeBuild), and Deploy (AWS CodeDep…
- A company uses AWS CodeCommit for source control. Developers frequently push large binary files (e.g., compiled JARs) to…
- A company runs a Stateful application on EC2 that requires sticky sessions. They use an ALB with duration-based stickine…
- An organization uses AWS CodePipeline to orchestrate deployments to multiple environments (dev, test, prod). Each enviro…
Last reviewed: Jul 4, 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.
Question Discussion
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.