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CLF-C02 practice question: Compute and containers (1 of 2)

Cloud Technology and Services A free question from our original CLF-C02 practice exam. Try it, then open the answer to see why each option is right or wrong.

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A company runs its containerized applications on self-managed Kubernetes in its own data center.

It wants to move them to AWS, keep the Kubernetes API and tools it already uses, and avoid running the Kubernetes control plane itself.

Which service should it use?

Choose one answer.

  1. A. Amazon Elastic Container Registry (Amazon ECR), which stores container images in private repositories
  2. B. Amazon Elastic Container Service (Amazon ECS), which runs containers on AWS using task definitions
  3. C. AWS Lambda, which runs short functions in response to events, with no servers to manage or patch
  4. D. Amazon Elastic Kubernetes Service (Amazon EKS), which runs a managed Kubernetes control plane
Show the answer and explanation

Answer: D

  • A. Wrong: ECR stores and manages container images. It does not run the applications or provide a Kubernetes control plane.
  • B. Wrong: ECS runs containers with its own AWS task and service model. It does not use the Kubernetes API, so the company would need to change its tools.
  • C. Wrong: Lambda runs short functions in response to events. It is not designed to host the company's Kubernetes-based containerized applications.
  • D. Right: Correct. EKS runs a managed Kubernetes control plane, and it is certified Kubernetes-conformant. The company can use standard Kubernetes tools without operating the control plane itself. Learn more: What is Amazon EKS? (opens in a new tab)

Explanation

Amazon EKS runs a managed Kubernetes control plane that is certified Kubernetes-conformant, so standard Kubernetes tools and applications work with little change. ECS, ECR and Lambda each do a different job and do not provide the Kubernetes API.

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