AWS Certified DevOps Engineer – Professional (DOP-C02) — Question 292

A company has a file-reading application that saves files to a database that runs on Amazon EC2 instances. Regulations require the company to delete files from EC2 instances every day at a specific time. The company must delete database records that are older than 60 days.

The database record deletion must occur after the file deletions. The company has created scripts to delete files and database records. The company needs to receive an email notification for any failure of the deletion scripts.

Which solution will meet these requirements with the LEAST development effort?

Answer options

• A. Use AWS Systems Manager State Manager to automatically invoke a Systems Manager Automation document at the specified time each day. Configure the Automation document to use a run command to run the deletion scripts in sequential order. Create an Amazon EventBridge rule to use Amazon Simple Notification Service (Amazon SNS) to send failure notifications to the company.
• B. Use AWS Systems Manager State Manager to automatically invoke a Systems Manager Automation document at the specified time each day. Configure the Automation document to use a run command to run the deletion scripts in sequential order. Create a conditional statement inside the Automation document as the last step to check for errors. Use Amazon Simple Email Service (Amazon SES) to send failure notifications as email messages to the company.
• C. Create an Amazon EventBridge rule that invokes an AWS Lambda function at the specified time. Add the necessary permissions for the invocation to the Lambda function's resource-based policy. Configure the Lambda function to run the deletion scripts in sequential order. Configure the Lambda function to use Amazon Simple Notification Service (Amazon SNS) to send failure notifications to the company.
• D. Create an Amazon EventBridge rule that invokes an AWS Lambda function at the specified time. Add the necessary permissions for the invocation to the Lambda function's resource-based policy. Configure the Lambda function to run the deletion scripts in sequential order. Configure the Lambda function to use Amazon Simple Email Service (Amazon SES) to send failure notifications as email messages to the company.

Correct answer: A

Explanation

Option A requires the least development effort because AWS Systems Manager State Manager and Run Command can natively execute existing scripts on EC2 instances sequentially without writing custom code. Furthermore, using Amazon EventBridge and Amazon SNS to handle failures and send email alerts leverages built-in AWS integrations. Solutions involving AWS Lambda or Amazon SES require significantly more custom code development and configuration effort.