Database Connectivity Issues Quiz

What you'll be asked

1. Which of the following is the most common first step to verify if a database server is reachable from an application server?
2. An application is throwing a 'Connection Refused' error. What is the most likely cause?
3. You receive a 'Too many connections' error in your application logs. How should you address this?
4. An application can connect to the database locally, but remote connections fail. Which configuration file is most likely the culprit?
5. Your application intermittently fails with a 'Socket Timeout' error during peak traffic. The database CPU usage is low. What is the most likely bottleneck?

Answers and explanations come after you submit.