To secure access for Amazon QuickSight from an on-premises Active Directory, what solution should be implemented?

Using an Active Directory connector with single sign-on (SSO) in a corporate network environment is the most effective way to secure access for Amazon QuickSight from on-premises Active Directory. This approach allows users to authenticate seamlessly using their existing corporate credentials while leveraging the capabilities of Active Directory.

When configured, the Active Directory connector facilitates a direct synchronization with the on-premises directory, enabling users to access QuickSight without needing to manage separate credentials. This not only enhances security by maintaining a centralized authentication mechanism, but also improves user experience by allowing single sign-on capabilities. Users can seamlessly transition to using QuickSight along with other applications that leverage the same directory, streamlining access management in the corporate environment.

The other options do not directly enable the user-friendly authentication experience required for QuickSight. A VPN connection, while it may securely connect your network to AWS, does not specifically address the need for seamless user authentication with Active Directory. Creating a VPC endpoint for Amazon S3 access relates to data transfer and security rather than user access and authentication. SSH tunneling to a database like Redshift focuses on database connectivity but does not relate to user access mechanisms for QuickSight itself.