LABS – CERTIFIED KUBERNETES ADMINISTRATOR WITH PRACTICE TESTS > TROUBLESHOOTING Troubleshooting 01. Application Failure 02. Control Plane Failure 03. Worker Node Failure 04. Troubleshoot Network **Troubleshooting Test 1:** A simple 2 tier application is deployed in the triton namespace. It must display a green web page on success. Click on the app tab at the top of your terminal to view your app..