Functional and non-functional requirements?

Question

Software testing

Hello, I am writing a work on automated testing, the teacher asks to add functional and non-functional requirements. I do not quite understand what I should write here, since my task is simply to test the software product (write scripts)

Answer 1

Functional requirements are business logic requirements.
For example, "To comment on posts, you need to register."
Non-functional are those that do not affect behavior, but are also important.
For example, "The service must withstand at least 100 concurrent requests."
There are more detailed articles about this - they are easily googled.