Explain the role of sub directory app/controllers and app/helpers.

Mention the role of rails controller.

Explain the features of ruby on rails.

How can the filter methods in ruby on rails be protected?

How is the model view controller framework used in ruby on rails?

When are self.up and self.down methods used?

How are the key differences between python and ruby?

Explain the advantages of ruby on rails?

What are float, dig and max?

What role do sub-directory app/helpers and app/controllers play?

What is rails migration? What can it do?

How many types of variables are available in ruby class?

What are class libraries?

What are naming conventions?

How can you run rails without creating databases?