AWS (Amazon Web Services) Certification Practice Exam

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Prepare for your AWS Certification Exam with flashcards and multiple-choice questions. Each question comes with hints and detailed explanations to help you succeed. Enhance your skills and be ready for the exam!

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In the context of AWS, what does an Amazon Cluster refer to?

A grouping of IAM roles
A collection of EC2 instances
A type of S3 bucket
A managed database service

The correct answer is: A collection of EC2 instances

An Amazon Cluster typically refers to a collection of EC2 instances working together as a unified resource pool, often used for specific applications or workloads. Clustering instances allows you to manage your application’s scalability and fault tolerance by distributing tasks across multiple servers. This arrangement can improve performance and provide redundancy in case of instance failures. For instance, in the context of Amazon ECS (Elastic Container Service) or Amazon EKS (Elastic Kubernetes Service), clusters facilitate the orchestration of container-based workloads. In these scenarios, each manager in the cluster can operate independently while still being part of a cohesive system, which enhances both resource management and application deployment capabilities. Understanding clusters is fundamental when designing applications for high availability and efficiency within the AWS ecosystem, as they enable effective scaling strategies that utilize the cloud's inherent elasticity.