Which service is used for securely accessing AWS services from on-premises?

The choice of AWS Site-to-Site VPN as the service used for securely accessing AWS services from on-premises is correct because it establishes a secure connection between an on-premises network and an AWS Virtual Private Cloud (VPC) over the internet. AWS Site-to-Site VPN creates an encrypted tunnel using IPsec, ensuring that data traveling over the internet is secure and private.

This service is ideal for organizations that need to securely integrate their on-premises infrastructure with AWS services, allowing for seamless communication between resources in both environments. This makes it particularly useful for hybrid cloud architectures, where businesses want to extend their existing on-premises resources into the cloud.

The other options serve different purposes. AWS VPN CloudHub is primarily used for connecting multiple remote sites to a single AWS VPC but is not specifically focused on on-premises access. AWS Direct Connect provides a dedicated network connection between on-premises data centers and AWS, which can be more reliable and faster than using a VPN but does not use the internet and requires additional setup. AWS Transit Gateway simplifies the network architecture by allowing multiple VPCs and on-premises networks to connect through a single gateway, but it does not create a direct secure access method from on-premises to AWS services like Site