Explanation

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

1. Time requirement (within 1 week): AWS Site-to-Site VPN can be set up quickly, typically within hours or days, as it uses internet connectivity and doesn't require physical infrastructure installation.

2. Secure network connection: Site-to-Site VPN creates an encrypted IPsec VPN tunnel over the internet between your on-premises network and AWS VPC.

3. Comparison with other options:

   • AWS Direct Connect: While it provides dedicated network connections, it typically takes weeks or months to establish because it requires physical installation of network circuits through telecom providers.
   • Amazon VPC: This is a virtual private cloud for isolating AWS resources, but it doesn't inherently provide connectivity to on-premises networks.
   • Edge location: These are part of Amazon CloudFront for content delivery, not for establishing secure network connections between on-premises and AWS.

Key benefits of AWS Site-to-Site VPN:

• Rapid deployment (hours to days)
• Cost-effective (no physical infrastructure costs)
• Secure encryption using IPsec
• Can be used as a temporary solution while waiting for AWS Direct Connect to be provisioned
• Works over existing internet connections

This solution perfectly meets the requirement of establishing a secure connection within one week's timeframe.