How to use sql db or mysql db. Without defining it in the database.yml

5

Explain me what is the difference between symbol and string?

1

What is the use of load and require in ruby?

5

Explain how Symbol is different from variables?

5

What is the difference between nil and false in ruby?

5

Tell me how you define instance variable, global variable and class variable in ruby?

1

What are the loops in ruby?

5

What are the object-oriented programming features supported by ruby?

5

Explain me what the difference is between false and nil in ruby?

1

Explain while loop in ruby.

1

How is visibility of methods changed in ruby?

5

Write the command to get installed Ruby version in your system?

5

Explain class libraries in ruby.

1

Explain the three levels of access control for ruby methods?

1

Tell us how would you implement hash in ruby internally?

1