Which of the following will check the array named "big_data" for the presence of a key "icecream"?

Which is NOT an ActiveRecord query method?

If you have posts and each post has_many comments, how do you structure your routes?

Which of these is NOT a default subdirectory of the app/ directory?

How would you check to see if an array named COLORS contains the the value 'red'?

Which would create a new project without unit test?

While installing Ruby, why do you sometimes get a missing 'psych' error?

Which code is correct about Creating links

What is the top-level model class added in Ruby on Rails 5?

Which type of field is recommended for storing 'enum' in Rails?

Which of these server is the default development server for Ruby on Rails 5?