Users report connectivity failures between instances in different Shared VPC service projects and to the internet. Which diagnostic step validates network-level connectivity and routing issues?

Connectivity Tests in Network Intelligence Center provide a comprehensive and proactive way to validate network configuration and connectivity paths between endpoints, including Shared VPC projects and the internet. It simulates network traffic and identifies potential issues like firewall rules, routing problems, or misconfigurations, giving a clear diagnosis. SSH and ping tests offer basic reachability but don't diagnose underlying network configuration issues. VPC Flow Logs capture traffic details but require analysis to infer problems, and audit logs focus on API calls, not network packet flow.