database design – Are “Relational Model” and “Relational Schema” two different thing?

I have come across a question in my technical MCQ test regarding Database Design.

Question: Relational Schema must be created after the Relational Model. -> true or false?

Now, I thought relational schema and relational model are same thing which we represent in table forms. Basically we can create schema after preparing ERD or EERD.

So, I was wandering What are the difference between Relational Schema and Relational Model?

I’ve done some research and most of blogs says it’s the same thing and some says Relational Schema means Database Schema.