SAA-C03 Question 209
Single answerYour company is designing a disaster recovery solution for a web application hosted in AWS. The primary environment is in the us-east-1 region, and a standby environment is configured in the us-west-2 region to ensure failover during outages. You need to ensure that the standby environment can handle the expected workload seamlessly during failover. Which action should you take to prevent throttling issues in the standby region?
- A
Request a service quota increase for the required resources in the us-west-2 region.
- B
Enable Auto Scaling in the us-west-2 region to automatically adjust capacity during failover.
- C
Create a CloudWatch alarm to monitor throttling errors in the us-west-2 region.
- D
Pre-provision all resources in the us-west-2 region with the same capacity as the us-east-1 region.
Show answer and explanation
Correct answer: A
Explanation
Service quotas are limits set by AWS that control the maximum amount of resources a service can use. In a disaster recovery scenario, if the standby environment takes over the workload, it may exceed the default service quotas of the region, leading to throttling. Requesting a service quota increase in the standby region ensures sufficient capacity to handle the workload during failover.
- A. Correct.
Correct. Requesting a service quota increase ensures that the standby region has sufficient capacity to handle the expected workload during failover, preventing throttling issues.
- B. Incorrect.
Incorrect. While Auto Scaling helps dynamically adjust resources, it does not address service quota limitations, which could cause throttling during peak loads in a failover scenario.
- C. Incorrect.
Incorrect. Monitoring throttling errors using CloudWatch provides insights into throttling events but does not proactively prevent them.
- D. Incorrect.
Incorrect. Pre-provisioning resources ensures capacity, but without increasing service quotas, throttling may still occur if limits are exceeded.