Which AWS service provides an isolated virtual network to connect AWS services and resources?

Amazon Virtual Private Cloud (Amazon VPC) enables 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. This service provides the isolated virtual network required to connect services and resources securely.

A. Amazon EC2 provides scalable computing capacity (virtual servers). These instances run within a VPC but do not provide the network itself.
B. Amazon DynamoDB is a fully managed NoSQL database service. It is a database, not a networking service.
C. Amazon Lightsail is a simplified service offering virtual private servers, but Amazon VPC is the underlying, foundational service that provides the isolated network.

1. AWS Documentation. (2023). What is Amazon VPC?. Amazon VPC User Guide. Retrieved from https://docs.aws.amazon.com/vpc/latest/userguide/what-is-amazon-vpc.html (See the "Amazon VPC concepts" section, Para. 1).

2. AWS Whitepapers. (2021). AWS Well-Architected Framework. Retrieved from https://docs.aws.amazon.com/wellarchitected/latest/framework/welcome.html (The framework consistently refers to VPC as the service for network isolation in the Security and Reliability pillars).