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Amazon CLF-C02: Which is AWS Well-Architected design principle to limit human error and facilitate consistent responses to events?

By: Author Alex Lim

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Question

A company wants to use guidelines from the AWS Well-Architected Framework to limit human error and facilitate consistent responses to events. Which of the following is a Well-Architected design principle that will meet these requirements?

A. Use AWS Code Deploy.
B. Perform operations as code.
C. Migrate workloads to a Dedicated Host.
D. Use AWS Compute Optimizer.

Answer

B. Perform operations as code.

Explanation

The correct answer is B. Perform operations as code.

The explanation is as follows:

Performing operations as code is a Well-Architected design principle that can help you limit human error and facilitate consistent responses to events. This principle means that you can apply the same engineering discipline that you use for application code to your entire environment. You can define your entire workload (applications, infrastructure) as code and update it with code. You can also implement your operations procedures as code and automate their run process by initiating them in response to events.

By performing operations as code, you can achieve the following benefits:

  • Reduce human error: You can avoid manual mistakes or inconsistencies that may occur when performing operations tasks by hand. You can also use version control, testing, and validation tools to ensure the quality and accuracy of your code.
  • Ensure consistent responses: You can ensure that your operations tasks are executed in the same way every time, regardless of who or what triggers them. You can also use standard templates, frameworks, and libraries to reuse and share your code across teams and workloads.
  • Increase efficiency and agility: You can speed up and simplify your operations tasks by using automation and orchestration tools. You can also adapt and scale your operations code to meet changing demands or requirements.

The other options are not Well-Architected design principles that will meet these requirements, because they are either not related to operations as code, or not part of the AWS Well-Architected Framework. For example:

  • Use AWS Code Deploy (option A) is not a Well-Architected design principle, but rather a service that automates code deployments to any instance, including Amazon EC2 instances and instances running on-premises. While AWS Code Deploy can help you perform operations as code, it is not a principle by itself.
  • Migrate workloads to a Dedicated Host (option C) is not a Well-Architected design principle, but rather a type of EC2 instance that provides you with physical servers that are fully dedicated for your use. Migrating workloads to a Dedicated Host may have some benefits, such as cost savings or compliance, but it is not related to operations as code.
  • Use AWS Compute Optimizer (option D) is not a Well-Architected design principle, but rather a service that helps you optimize your compute resources for performance and cost by providing recommendations based on your usage patterns. Using AWS Compute Optimizer may help you improve your workload efficiency, but it is not related to operations as code.

Which is AWS Well-Architected design principle to limit human error and facilitate consistent responses to events?

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