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A company's application on EC2 instances relies on a Single-AZ RDS for MySQL DB instance. The SysOps administrator needs to ensure failover to minimize downtime.
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The SysOps administrator needs to address high disk I/O issues during EC2 instance bootstrap in an Auto Scaling group.

Question 397 - SOA-C02 discussion

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To automatically reboot an EC2 instance when disk usage reaches 100%, a solution with minimal operational overhead is needed.

A.

Create a CloudWatch alarm for the EC2 instance. Create an Amazon EventBridge event rule that reacts to the CloudWatch alarm and reboots the EC2 instance.

Answers
A.

Create a CloudWatch alarm for the EC2 instance. Create an Amazon EventBridge event rule that reacts to the CloudWatch alarm and reboots the EC2 instance.

B.

Create a CloudWatch alarm for the EC2 instance. Create an Amazon Simple Email Service (Amazon SES) notification that reacts to the CloudWatch alarm and reboots the EC2 instance.

Answers
B.

Create a CloudWatch alarm for the EC2 instance. Create an Amazon Simple Email Service (Amazon SES) notification that reacts to the CloudWatch alarm and reboots the EC2 instance.

C.

Create an AWS Lambda function to reboot the EC2 instance. Create a CloudWatch alarm that uses Amazon EventBridge to invoke the Lambda function.

Answers
C.

Create an AWS Lambda function to reboot the EC2 instance. Create a CloudWatch alarm that uses Amazon EventBridge to invoke the Lambda function.

D.

Create an AWS Lambda function to reboot the EC2 instance. Use EC2 health checks to invoke the Lambda function.

Answers
D.

Create an AWS Lambda function to reboot the EC2 instance. Use EC2 health checks to invoke the Lambda function.

Suggested answer: A

Explanation:

Using a CloudWatch alarm with an EventBridge rule provides an automated, direct way to reboot the EC2 instance without extra components like SES or Lambda. This is a straightforward approach with low operational overhead.

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asked 06/11/2024
Samuel rodriguez
30 questions
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