how you define Instance Variable, Global Variable and Class Variable in Ruby?
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Explain the features of ruby on rails.
What is the purpose of auto_load in ruby?
What does session and cookies represent in ruby on rails?
What are the various changes between the rails version 2 and 3?
What are naming conventions?
Mention the differences between the observers and callbacks in ruby on rails.
what is rails caching?
What is the difference between delete and destroy ?
Explain the role of sub directory app/controllers and app/helpers.
Who designed active record in rails?
Why we use migration in rails?
What is the rail console?