what are rails filters?
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How to use two databases into a single application?
what is active record?
What is difference between form_for and form_tag?
how you define Instance Variable, Global Variable and Class Variable in Ruby?
What is rake?
What is the difference between symbol and string?
How many types of relationships does a model has?
explain request/response cycle?
Mention the differences between the observers and callbacks in ruby on rails.
What does ruby name refer to?
Explain me what is the purpose of rjs in rails?
Explain some features of nested scaffolding.