Which AWS service allows you to create virtual networks in the cloud?

The correct answer is AWS VPC, which stands for Amazon Virtual Private Cloud. This service enables users to create isolated virtual networks within the AWS cloud environment. With AWS VPC, you can define your own network topology, including the selection of IP address ranges, the creation of subnets, and the configuration of route tables. This level of customization allows users to design their cloud network in a way that closely resembles a traditional network setup, while benefiting from the scalability and flexibility associated with cloud computing.

Furthermore, AWS VPC supports various features such as security groups and network access control lists (ACLs) to enhance security and control over inbound and outbound traffic. Additionally, you can connect your VPC to your on-premises data center using AWS Direct Connect or use a VPN connection, offering strong options for hybrid cloud architectures.

In contrast, AWS Direct Connect is primarily focused on establishing private connectivity between your data center and AWS. AWS Route 53 is a scalable and highly available Domain Name System (DNS) web service, while AWS CloudFront is a content delivery network (CDN) that distributes content with low latency. Each of these services serves different purposes and does not provide the functionality to create virtual networks as AWS VPC does.