I know its a bit off topic but now the internship season is going on and so many companies are recruiting interns for 2021 summer. So my doubt is, will they stop hiring for 2021 summer after this phase?

I mean , if I dont get any offers in these 1-2 months, will I get a chance to apply for summer internships in early 2021(Jan-Mar time) ? Does anyone know about this ?

I'm asking this because I got to know that the companies are also asking questions from DBMS,OS,etc . which hasnt been taught completely in our college. (DBMS was in last sem syllabus , but corona FTW ). And I don't think I can complete so many stuff in few weeks.