Explanation

AWS Site-to-Site VPN is the correct solution because:

• Fast Deployment: Can be set up within hours or days, meeting the 1-week requirement
• Secure Connection: Provides encrypted IPsec VPN tunnels between on-premises networks and AWS VPCs
• Cost-Effective: No dedicated physical connections required
• Internet-Based: Uses existing internet connections

Why not the other options:

• AWS Direct Connect: Requires physical cross-connects which typically take weeks to months to provision
• Amazon VPC: This is a virtual network service, not a connectivity solution between on-premises and AWS
• Edge location: These are part of Amazon CloudFront for content delivery, not for secure network connections

AWS Site-to-Site VPN is specifically designed for quickly establishing secure connections between on-premises networks and AWS cloud resources using standard VPN protocols.