AWS Certified SysOps Administrator – Associate — Question 313

A company needs to monitor the disk utilization of Amazon Elastic Block Store (Amazon EBS) volumes. The EBS volumes are attached to Amazon EC2 Linux instances. A SysOps administrator must set up an Amazon CloudWatch alarm that provides an alert when disk utilization increases to more than 80%.

Which combination of steps must the SysOps administrator take to meet these requirements? (Choose three.)

Answer options

• A. Create an IAM role that includes the CloudWatchAgentServerPolicy AWS managed policy. Attach the role to the instances.
• B. Create an IAM role that includes the CloudWatchApplicationInsightsReadOnlyAccess AWS managed policy. Attach the role to the instances.
• C. Install and start the CloudWatch agent by using AWS Systems Manager or the command line.
• D. Install and start the CloudWatch agent by using an IAM role. Attach the CloudWatchAgentServerPolicy AWS managed policy to the role.
• E. Configure a CloudWatch alarm to enter ALARM state when the disk_used_percent CloudWatch metric is greater than 80%.
• F. Configure a CloudWatch alarm to enter ALARM state when the disk_used CloudWatch metric is greater than 80% or when the disk_free CloudWatch metric is less than 20%.

Correct answer: A, C, E

Explanation

To monitor OS-level metrics like disk utilization on Amazon EC2, the CloudWatch agent must be installed and configured. This requires attaching an IAM role with the CloudWatchAgentServerPolicy policy to the instances (A) and executing the agent installation using AWS Systems Manager or the command line (C). Finally, a CloudWatch alarm must be configured using the disk_used_percent metric generated by the agent to alert when utilization exceeds 80% (E).