The correct answer is Amazon Simple Storage Service (Amazon S3). Amazon S3 is a cloud-based object storage service that offers a highly scalable, durable, and secure infrastructure for storing and retrieving any amount of data from anywhere on the web. It is the central application in the AWS portfolio because it provides a foundation for many other AWS services, such as Amazon EC2, Amazon RDS, and Amazon DynamoDB.
Amazon Elastic Compute Cloud (Amazon EC2) is a cloud computing service that provides resizable compute capacity in the cloud. It is a web service that provides infrastructure and allows users to run applications on Amazon’s infrastructure.
Amazon Simple Queue Service (Amazon SQS) is a fully managed message queuing service that enables you to decouple and scale microservices, distributed systems, and serverless applications.
Amazon Simple Notification Service (Amazon SNS) is a fully managed pub/sub messaging service that enables you to decouple microservices, distributed systems, and serverless applications.
Amazon S3 is a key-value store that stores data in buckets. Each bucket can contain an unlimited number of objects, and each object can have a maximum size of 5 terabytes. Amazon S3 provides a number of features, including:
- Durability: Amazon S3 stores data redundantly across multiple data centers, so your data is always available.
- Availability: Amazon S3 is designed to be highly available, with a 99.999999999% uptime SLA.
- Scalability: Amazon S3 can scale to meet your needs, regardless of how much data you need to store or how much traffic you receive.
- Security: Amazon S3 is designed to be secure, with a number of features to protect your data, including encryption and access control.
Amazon S3 is a powerful and versatile storage service that can be used for a variety of purposes, including:
- Storing data for web applications
- Storing data for mobile applications
- Storing data for backup and disaster recovery
- Storing data for analytics and machine learning
If you are looking for a reliable, scalable, and secure storage service, Amazon S3 is a great option.