SOA-C02 Question 29
Select 2A company uses Amazon CloudWatch to monitor the performance of its EC2 instances. They want to be notified immediately if the CPU utilization of any instance exceeds 80% for a period of 5 minutes. The operations team also wants to ensure they can track similar alerts in the future by reusing the same configuration. Which solution will meet this requirement?
- A
Create a CloudWatch alarm with a threshold of 80% for CPU utilization and configure it to send notifications to an Amazon SNS topic.
- B
Create a CloudWatch alarm and configure it to send notifications directly to an email address.
- C
Subscribe the required email addresses to an Amazon SNS topic and configure the CloudWatch alarm to publish notifications to that topic.
- D
Set up an Amazon EventBridge rule to monitor CPU utilization and configure it to trigger an Amazon SNS topic for notifications.
- E
Use AWS Health to monitor CPU utilization and configure it to send notifications to an Amazon SNS topic.
Show answer and explanation
Correct answers: A, C
Explanation
To meet the requirements, a CloudWatch alarm should be used to monitor the CPU utilization metric and trigger a notification to an Amazon SNS topic when the threshold is breached. Amazon SNS allows multiple subscribers (like email addresses) to receive the notifications, and this configuration can be reused for future alerts. Direct email notifications from CloudWatch alarms are not supported, and AWS Health or EventBridge are not designed for monitoring metrics like CPU utilization.
- A. Correct.
This is correct because a CloudWatch alarm can monitor CPU utilization and trigger notifications to an Amazon SNS topic when the threshold is breached. Using SNS allows notifications to be sent to multiple subscribers and makes the configuration reusable.
- B. Incorrect.
This is incorrect because CloudWatch alarms cannot directly send notifications to an email address. Notifications must go through an Amazon SNS topic.
- C. Correct.
This is correct because by subscribing email addresses to an Amazon SNS topic, you can ensure that users receive notifications. Publishing notifications to the SNS topic from the CloudWatch alarm makes the configuration reusable.
- D. Incorrect.
This is incorrect because Amazon EventBridge is not typically used for monitoring individual resource metrics like CPU utilization. CloudWatch alarms are the appropriate tool for this use case.
- E. Incorrect.
This is incorrect because AWS Health does not monitor resource metrics like CPU utilization. It provides notifications for AWS service events and personal health events.