Answer: Availability Zone

## Explanation An **Availability Zone (AZ)** is an environment that consists of one or more discrete data centers with redundant power, networking, and connectivity, housed in separate facilities. Each Availability Zone is designed as an independent failure domain, meaning if one AZ experiences issues, the others continue to operate normally. **Why other options are incorrect:** - **Amazon CloudFront**: This is a content delivery network (CDN) service that delivers content globally through edge locations, not data centers. - **VPC (Virtual Private Cloud)**: This is a virtual network dedicated to your AWS account, not a physical data center environment. - **AWS Outposts**: This is a service that extends AWS infrastructure to on-premises locations, but it's not the standard definition of an environment consisting of one or more data centers in AWS regions. Availability Zones are the fundamental building blocks of AWS regions and provide the physical infrastructure for running applications with high availability.

Author: Ritesh Yadav