what is the difference between the Observers and Callbacks in Ruby on Rails?
What is the difference between render and redirect?
What role does garbage collection play?
Difference between argument and parameter in ruby on rails ?
What is unit testing (in classical terms)? What is the primary technique when writing a test ?
What is rails scaffolding?
How is calling super() different from the super call?
Tell us what is the difference between redirect and render in ruby on rails?
What are the functions performed by rails migration?
What is the importance of rjs?
Explain rails caching levels.
What is the current version of ruby on rails?
What are the different components of rails ?