Questioning About Quiz Section

Hey, I Watched The “Function in Kotlin” Videos And I Don’t Know Where They Are Talking About “Companion Object”, “Extension Function”, “Overloaded Function”, But In The Quiz Section There Are More Then 5 Questions Regarding These Functions. How Can I Answer These Question When I Didn’t Read Or Understand About That, The Same Thing Was Happen With Me Before Also. In Almost Every Quiz There Are More Then 5 Out Of Context Questions. Please Check This And Tell Me What To DO. Otherwise I’m Not taking Part In The Quiz.

@harshitkaushik2002_74316a3c9848efff
the other functions were explained in other parts of the course when used in the projects

If, These functions were explained in others part of the course then why their asking me regarding these functions in the quiz before explaining??? is there any sense ???