If I finish a course on any course, will I be considered to know that language?

Answer 1

The SoloLearn courses teach you the very basics. You can complete the course answering the quizes by trial and error. Do you consider that knowledge or luck? You need to apply and practice what you learn. Write programs, do challenges, expand your knowledge by learning new things from other SoloLearners' codes and also from other sources. Based on your skills and learning speed, you can gain an adequate knowledge of a language in a few months, if you commit enough time for learning.

Answer 2

Obviously no