Which service is the AWS managed container image registry that is secure, scalable, and reliable?

• A. Amazon Lightsail
• B. Amazon Elastic Container Service (Amazon ECS)
• C. Amazon Elastic Container Registry (Amazon ECR)
• D. AWS Outposts

Answer: (C)

A container image registry that is managed by AWS and designed to securely store and retrieve container images is Amazon Elastic Container Registry. It provides a fully managed, private repository for Docker images that your applications push to and pull from in ECS or EKS. Security is built in with IAM-based access control, encryption at rest (S3-based) and in transit (TLS), and optional image scanning to detect vulnerabilities. Reliability comes from AWS-managed infrastructure with high availability and automatic scaling to handle growing image stores and peak pull traffic. Because it’s tightly integrated with ECS and EKS, you can push images with standard Docker commands and reference them directly in your deployment configurations. This makes it the natural choice for a secure, scalable, and reliable registry.