When are self.up and self.down methods used?
Explain about Dig, Float and Max?
What are the various components of rail?
Is ruby on rails popular?
what are benefits of using active record as opposed to raw sql queries?
What are generators in ruby on rails?
Tell me what is polymorphic association in ruby on rails?
Mention all the naming conventions in ruby on rails.
Do you know what are the types of caching used in rails, what are they?
What is rails migration? What can it do?
What is the latest version of ruby on rails?
What are the various changes between the rails version 2 and 3?
Explain rest in rails routes.
What are the different filters used in ruby on rails?
What is the current version of ruby on rails?