Hi @Moncef_29335 and @Itoro_Etuks_29544,
Welcome to M001: MongoDB Basics course.
I am Shubham (Curriculum Support Engineer). I hope you have an amazing learning experience. If you ever get stuck in any topic, please feel free to ask your questions here in the discussion forum.
Happy Learning 
Thanks,
Shubham Ranjan
Curriculum Support Engineer