Which of the following is true about Site-to-Site VPN?

The correct answer emphasizes that a Site-to-Site VPN enables on-premises networks to connect securely to AWS over the public internet. This feature is critical because it uses encrypted connections to ensure data security as it traverses the public internet, effectively creating a private tunnel between the on-premises network and AWS. This approach is both cost-effective and efficient, allowing for seamless integration of on-premises applications with AWS infrastructure while maintaining security and privacy through encryption.

The capability to utilize existing private IP addresses is vital for the efficiency of a hybrid cloud architecture, allowing resources on the on-premises network to communicate with those hosted on AWS without exposing sensitive data to public access. By using the public internet, the Site-to-Site VPN circumvents the need for expensive dedicated connections while ensuring that data remains secure.

In contrast, the other options do not accurately reflect the core functions and security features of Site-to-Site VPNs. A non-encrypted connection contradicts the fundamental design of VPNs, which prioritize security. The limitation to private IP addresses only does not fully capture the flexibility offered by AWS, as it can indeed facilitate various communication scenarios. Lastly, requiring special hardware on the AWS side does not hold true, as AWS manages the underlying infrastructure necessary for the