You have an Azure App Service instance named App1. You need to determine when App1 experienced downtime while minimizing administrative effort. Which troubleshooting category in App Service diagnostics should you use?

The "Availability and Performance" category in App Service diagnostics is designed to help identify and troubleshoot issues related to application uptime, response times, and overall performance, making it the most direct and efficient way to determine downtime. "Navigator" helps you find resources and navigate the portal, not diagnose downtime. "Configuration and Management" focuses on settings and operational aspects, not directly on availability issues. "Diagnostic Tools" is a broader category that contains various tools, but "Availability and Performance" specifically targets the downtime scenario with minimal administrative effort.