Ruby on Rails Developer Question:

Do you know what is Rails Caching?

Answer:

Caching is used in any web technologies. It speeds up the performance by storing previous results for subsequent requests. By default, cahcing is disabled in Rails.

Rails caching is available at three levels of granularity:

☛ Page
☛ Action
☛ Fragment

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Please explain what is the purpose of the rakefile available in the demo directory in Ruby?	Do you know the role of the subdirectories app/controllers and app/helpers in Rails?