Questions and Simple Problems using ruby on rails?

I'm going to attend the final round of interview. They said they will ask the simple problems on ruby on rails from the below topics and bit deep fundamentals on these topics.

Senior Programmers in ruby on rails kindly suggest me some problems and question from these topics that you will ask to the candidate when you interview them?. It helps me a lot during this pandemic to get job.

SECTION: THE RUBY PROGRAMMING LANGUAGE.

• TOPICS: ▪ Working with strings. ▪ Working with numbers. ▪ Methods. ▪ Branching if/elsif/else/end. ▪ Operators. ▪ Array and Iterators. ▪ Hashes. ▪ Object Oriented Programming. ▪ Attributes, getters, setters. ▪ ‘Self’ notation for method names.

• SECTION: INTRODUCTION TO RUBY ON RAILS.

• TOPICS: ▪ Model, View and Controller. ▪ Rail App Structure. ▪ Root route, controller, more MVC. ▪ Structure of Rails Application. ▪ Front-End: Learn basic HTML, CSS. ▪ Add about Page. ▪ The back-end: Database and tables. ▪ The back-end: CRUD scaffold.

• SECTION: CRUD OPERATION IN RUBY ON RAILS.

• TOPICS: ▪ Tables. Migration and naming convention. ▪ Models and rails console. ▪ CRUD operation from rails console. ▪ Validations. ▪ Route, action, view. ▪ Index, new article form.
  ▪ Create action. ▪ Edit and update existing. ▪ Delete. ▪ User Interface. ▪ DRY code.