SOA-C02 Question 30
Single answerAn organization uses an Amazon RDS instance to host its critical database. They want to ensure they are notified immediately if the CPU utilization of the RDS instance exceeds 80% for 5 consecutive minutes. How can the SysOps Administrator configure this requirement?
- A
Create a CloudWatch alarm that monitors the RDS instance's CPU utilization metric and configure it to send a notification to an Amazon SNS topic when the threshold is breached.
- B
Enable enhanced monitoring on the RDS instance and configure it to send alerts directly to the system administrator’s email address.
- C
Set up an AWS Health event to monitor RDS performance and configure it to trigger an alert when the CPU utilization exceeds 80%.
- D
Use Service Quotas to set a CPU usage limit of 80% for the RDS instance and configure it to notify the administrator if the limit is reached.
Show answer and explanation
Correct answer: A
Explanation
To meet the requirement, a CloudWatch alarm should be used to monitor the CPU utilization metric of the RDS instance. When the specified threshold (80% for 5 minutes) is breached, the alarm can trigger an action, such as sending a notification to an Amazon SNS topic. The other options are either not designed for this purpose or do not support the required functionality.
- A. Correct.
This is the correct approach. CloudWatch alarms can monitor RDS metrics, such as CPU utilization, and trigger an SNS notification when thresholds are breached. You can specify the condition (e.g., CPU utilization > 80% for 5 minutes) and set up an SNS topic to send notifications.
- B. Incorrect.
Enhanced monitoring provides additional metrics but does not allow direct configuration for sending alerts or notifications. It must be paired with other services like CloudWatch to achieve this functionality.
- C. Incorrect.
AWS Health events are used to provide notifications about changes or interruptions in AWS services, but they cannot be used to monitor custom performance metrics like CPU utilization.
- D. Incorrect.
Service Quotas track and manage service limits but cannot monitor resource metrics like CPU utilization. It is not applicable for this scenario.