- A
Deploy the application in multiple AWS Regions using an active-active or active-passive pattern
Provides resilience against Region failure.
- B
Deploy the application across multiple Availability Zones in a single Region
Why wrong: Does not protect against Region failure.
- C
Replicate data across Regions using services like DynamoDB global tables or RDS cross-Region replication
Ensures data is available in another Region.
- D
Use a single CloudFront distribution with multiple origins in the same Region
Why wrong: Does not protect against Region failure.
- E
Configure RDS read replicas in the same Region
Why wrong: Read replicas are for read scaling, not disaster recovery across Regions.
Question 556 of 1,750
Multi-Region Architecture: Withstanding Full Region Failure
This DOP-C02 practice question tests your understanding of resilient cloud solutions. 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. A key principle to apply: multi-Region Deployment. 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 wants to ensure that its application running on AWS can withstand the failure of an entire AWS Region. Which TWO strategies should the company implement?
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
✓
Deploy the application in multiple AWS Regions using an active-active or active-passive pattern
To withstand an entire AWS Region failure, the company should deploy the application in multiple AWS Regions (A) and replicate data across Regions (C). Deploying across multiple Availability Zones (B) protects only within a single Region. A single CloudFront distribution with multiple origins in the same Region (D) does not provide regional failover. RDS read replicas in the same Region (E) are for read scaling, not disaster recovery across Regions.
Key principle: Multi-Region Deployment
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Deploy the application in multiple AWS Regions using an active-active or active-passive pattern
Why this is correct
Provides resilience against Region failure.
Related concept
Multi-Region Deployment
- ✗
Deploy the application across multiple Availability Zones in a single Region
Why it's wrong here
Does not protect against Region failure.
- ✓
Replicate data across Regions using services like DynamoDB global tables or RDS cross-Region replication
Why this is correct
Ensures data is available in another Region.
Related concept
Multi-Region Deployment
- ✗
Use a single CloudFront distribution with multiple origins in the same Region
Why it's wrong here
Does not protect against Region failure.
- ✗
Configure RDS read replicas in the same Region
Why it's wrong here
Read replicas are for read scaling, not disaster recovery across Regions.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Candidates often confuse Multi-AZ deployments (which protect against AZ failures) with multi-Region deployments required for regional disaster recovery.
Detailed technical explanation
How to think about this question
Treat this as a scenario question. Identify the problem, the constraint, and the best action. Then compare each option against those facts.
KKey Concepts to Remember
- Multi-Region Deployment
- Cross-Region Data Replication
- Active-Active vs Active-Passive
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
Multi-Region Deployment
Real-world example
How this comes up in practice
An e-commerce site experiences heavy traffic on Black Friday and near-zero traffic during off-peak weeks. Rather than provisioning permanent large VMs, the team uses auto-scaling groups that add capacity automatically under load and reduce it overnight. Questions like this test whether you understand elasticity, availability zones, and cloud compute scaling patterns.
What to study next
Got this wrong? Here's your next step.
Review multi-Region Deployment, then practise related DOP-C02 questions on the same topic to reinforce the concept.
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Resilient Cloud Solutions — study guide chapter
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FAQ
Questions learners often ask
What does this DOP-C02 question test?
Resilient Cloud Solutions — This question tests Resilient Cloud Solutions — Multi-Region Deployment.
What is the correct answer to this question?
The correct answer is: Deploy the application in multiple AWS Regions using an active-active or active-passive pattern — To withstand an entire AWS Region failure, the company should deploy the application in multiple AWS Regions (A) and replicate data across Regions (C). Deploying across multiple Availability Zones (B) protects only within a single Region. A single CloudFront distribution with multiple origins in the same Region (D) does not provide regional failover. RDS read replicas in the same Region (E) are for read scaling, not disaster recovery across Regions.
What should I do if I get this DOP-C02 question wrong?
Review multi-Region Deployment, then practise related DOP-C02 questions on the same topic to reinforce the concept.
What is the key concept behind this question?
Multi-Region Deployment
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Last reviewed: Jun 20, 2026
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