AWS Certified SysOps Administrator – Associate (legacy) — Question 379

A user has created a launch configuration for Auto Scaling where CloudWatch detailed monitoring is disabled. The user wants to now enable detailed monitoring.
How can the user achieve this?

Answer options

• A. Update the Launch config with CLI to set InstanceMonitoringDisabled = false
• B. The user should change the Auto Scaling group from the AWS console to enable detailed monitoring
• C. Update the Launch config with CLI to set InstanceMonitoring.Enabled = true
• D. Create a new Launch Config with detail monitoring enabled and update the Auto Scaling group

Correct answer: D

Explanation

AWS Launch Configurations are immutable and cannot be modified once they are created. To enable detailed monitoring or make any other configuration changes, you must create a new Launch Configuration with the desired settings and update the Auto Scaling group to use it. Therefore, options A, B, and C are incorrect because they attempt to modify an existing launch configuration or adjust the Auto Scaling group settings directly for this purpose.