AWS Certified Developer – Associate — Question 88

A developer is working on an ecommerce website. The developer wants to review server logs without logging in to each of the application servers individually. The website runs on multiple Amazon EC2 instances, is written in Python, and needs to be highly available.

How can the developer update the application to meet these requirements with MINIMUM changes?

Answer options

• A. Rewrite the application to be cloud native and to run on AWS Lambda, where the logs can be reviewed in Amazon CloudWatch.
• B. Set up centralized logging by using Amazon OpenSearch Service (Amazon Elasticsearch Service), Logstash, and OpenSearch Dashboards (Kibana).
• C. Scale down the application to one larger EC2 instance where only one instance is recording logs.
• D. Install the unified Amazon CloudWatch agent on the EC2 instances. Configure the agent to push the application logs to CloudWatch.

Correct answer: D

Explanation

The correct answer is D because installing the Amazon CloudWatch agent allows the developer to efficiently collect and centralize logs from multiple EC2 instances with minimal changes to the application. Option A requires significant rewriting of the application, while option B involves more complex setup and infrastructure changes. Option C compromises availability by reducing redundancy, which is counterproductive for a highly available application.