SAA-C03 Question 207
Select 3A company is designing a disaster recovery (DR) strategy for its primary workload running on Amazon EC2. The DR strategy involves a standby environment in a separate AWS Region. To ensure the standby environment can scale effectively during a failover event, the company needs to handle service quotas and throttling for Amazon EC2 instances. What steps should the company take to configure service quotas for the standby environment?
- A
Request a service quota increase for EC2 instance limits in the standby region.
- B
Use AWS Service Quotas to automatically mirror service limits from the primary region to the standby region.
- C
Monitor the standby environment with Amazon CloudWatch to track quota usage and proactively request increases if needed.
- D
Implement an Auto Scaling group in the standby region to automatically handle quota increases during failover.
- E
Verify the default service quotas in the standby region and ensure they align with the workload requirements.
Show answer and explanation
Correct answers: A, C, E
Explanation
When preparing a standby environment for disaster recovery, it is critical to ensure that regional service quotas, such as EC2 instance limits, are sufficient for the anticipated workload. Quotas are managed independently for each region, so the company must request increases in the standby region where needed. Monitoring quota usage with tools like CloudWatch helps avoid throttling during failover. Additionally, verifying the default quotas ensures a proactive approach to meeting workload requirements.
- A. Correct.
Correct. Service quotas for EC2 instances are region-specific, and requesting a quota increase in the standby region ensures the environment can handle the workload during failover.
- B. Incorrect.
Incorrect. AWS does not provide an automatic mechanism to mirror service quotas between regions. Service quotas must be managed independently for each region.
- C. Correct.
Correct. Monitoring quota usage with Amazon CloudWatch provides insight into when limits might be reached, allowing proactive quota increase requests.
- D. Incorrect.
Incorrect. Auto Scaling groups cannot increase service quotas. They help manage instance scaling within the existing limits.
- E. Correct.
Correct. The default service quotas in the standby region may be insufficient for the workload, so they should be verified and adjusted as needed.