Q42 — AWS DOP-C02 Ch.2

Question 42 of 100 | ← Chapter 2

A company runs an application on Amazon EC2 instances in an Auto Scaling group. When the application starts, it must first process data from an Amazon S3 bucket before it can begin serving requests. The data in the S3 bucket is growing. When the Auto Scaling group adds new instances, the application now takes several minutes to download and process the data before it can serve requests. The company wants to reduce the time new EC2 instances take to become ready to serve requests.

• A. Configure a warm pool for the Auto Scaling group where warm EC2 instances are in a stopped state. Configure an Autoscaling:EC2_INSTANCE_LAUNCHING lifecycle hook on the Auto Scaling group. Modify the application to complete the lifecycle hook when it is ready to serve requests.
• B. Increase the maximum number of instances in the Auto Scaling group. Configure an autoscaling:EC2_INSTANCE_LAUNCHING lifecycle hook on the Auto Scaling group. Modify the application to complete the lifecycle hook when it is ready to serve requests.
• C. Configure a warm pool for the Auto Scaling group where warm EC2 instances are in a running state. Configure an autoscaling:EC2_INSTANCE_LAUNCHING lifecycle hook on the Auto Scaling group. Modify the application to complete the lifecycle hook when it is ready to serve requests. ✓
• D. Increase the maximum number of instances in the Auto Scaling group. Configure an autoscaling:EC2_INSTANCE_LAUNCHING lifecycle hook on the Auto Scaling group. Modify the application to complete the lifecycle hook and place the new instance in Standby state when it is ready to serve requests.

Correct Answer: C. Configure a warm pool for the Auto Scaling group where warm EC2 instances are in a running state. Configure an autoscaling:EC2_INSTANCE_LAUNCHING lifecycle hook on the Auto Scaling group. Modify the application to complete the lifecycle hook when it is ready to serve requests.

Explanation

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