Final answer:
USQL in Dynatrace refers to User Session Query Language, which is used for querying user sessions to analyze user behavior and app performance.
Step-by-step explanation:
In Dynatrace, USQL stands for User Session Query Language. It is a powerful and versatile query system designed to query user sessions within the Dynatrace web monitoring suite. With USQL, you can analyze and extract valuable insights from user session data, helping you to better understand user behavior and the performance of your applications. For example, you might use USQL to find out how many users experienced slow loading times or to segment users based on their interactions with your website or application.