Exam AWS Certified DevOps Engineer - Professional DOP-C02 topic 1 question 151 discussion

I go with D, simply because with Fargate you have very limited access to the OS.

While option A is a strong candidate due to its serverless nature and ease of deployment, option D is the most suitable solution given the need for specific software versions, OS-level tuning, and the requirement for a scalable and fault-tolerant infrastructure. Option D provides the necessary control over the software environment and infrastructure configuration, along with the benefits of automation and scalability.

Option B is clearly the preferred option: - Uses Elastic Beanstalk web server tier with load balancing - Provides managed Tomcat platform - Supports configuration files for software installation - Includes auto-scaling and health monitoring - Uses CodePipeline for automated deployments - Appropriate for web applications Option A: Containerization created unnecessary overhead and it will turn up more expensive Option C: Worker tier is for background processes, not suitable for web applications Option D: - More manual configuration required - Less managed service features - No built-in platform support - More complex to maintain

AWS Fargate does not allow direct tuning of Linux OS-level parameters because it is a fully managed, serverless compute engine for containers. With Fargate, AWS abstracts the underlying infrastructure, including the operating system, and does not expose granular OS-level configurations.

keywords: - specific versions of Apache Tomcat, HAProxy, and Varnish Cache - operating system-level parameters Not A as Fargate is serverless

Key point: The application's operating system-level parameters require tuning

ill go with D

I doubt this question will come up since both A and D are correct: https://aws.amazon.com/blogs/containers/announcing-additional-linux-controls-for-amazon-ecs-tasks-on-aws-fargate/ they need to add some words to the question tat force you to choose either A or D

Answer A

D - The application's operating system-level parameters require tuning - means option D is the only answer. A,B and C dont allow this os level tuning

AWS Fargate can tune linux kernel parameters. https://docs.aws.amazon.com/AmazonECS/latest/developerguide/task_definition_parameters.html

D is correct: <The application's operating system-level parameters require tuning> means the user need controls over os-level A: AWS Fargate and Docker dont provide os-level controls B and C: Beanstalk does not support Varnish Cache and no os-level controls provided

The question only needs Linux OS, its not asking for any extra customizations. AWS fargate allows you to choose the linux platform - and you can package the specific packages in a docker container.

It need specific versions of Apache, so, B and C are out, it requires OS level customization, so no Fargate (A)

D: you can't customize fargate OS, Also the docker images only ocntains the application software