Explanation
Amazon VPC (Virtual Private Cloud) is the correct answer because:
- Amazon VPC allows you to provision a logically isolated section of the AWS Cloud where you can launch AWS resources in a virtual network that you define
- You have complete control over your virtual networking environment, including selection of your own IP address range, creation of subnets, and configuration of route tables and network gateways
- It provides isolation and security for your AWS resources
Why the other options are incorrect:
- AWS VPN: This is a service for creating secure connections between your on-premises network and AWS, but it doesn't create the isolated environment itself
- AWS Regions: These are geographical locations where AWS has data centers, but they don't provide user-defined isolation
- Availability Zones: These are isolated locations within AWS Regions, but they are AWS-defined, not user-defined isolated environments
Amazon VPC is specifically designed to provide user-defined, isolated virtual networking environments in AWS.