Application Error Diagnosis Quiz

What you'll be asked

1. When an application displays a '500 Internal Server Error', what is the most likely cause?
2. An application is suddenly running very slowly after a recent database migration. What is the first step you should take to diagnose the issue?
3. Users are reporting intermittent 'Connection Timeout' errors when accessing an application. Which component is the most likely source of the bottleneck?
4. After deploying a new microservice, you notice that service A cannot communicate with service B, despite both being healthy. What should you investigate first?
5. A database reports a 'Deadlock found when trying to get lock' error. Which scenario most accurately describes the root cause?

Answers and explanations come after you submit.