Which of the following is the correct syntax for an input field of radio buttons in form_for?

Which is the best way to add a page-specific JavaScript code in a Rails 3 app? <%= f.radio_button :rating, 'positive', :onclick => '$('some_div').show();' %>

In order to enable locking on a table, which of the following columns is added?

If a float is added to an integer, what is the class of the resulting number? i.e. 1.0 + 2

In a Rails Migration, which of the following will make a column unique, and then have it indexed?

Which will disable browser page caching in Rails?

How can a value be stored so that it's shared across an entire request (i.e. make it accessible in controllers, views and models)?

What is the best way to get the current request URL in Rails?

In the case of Rails application performance optimization, select all valid ways to do assets compilation:

Which options in the Ruby on Rails MVC architecture handles the dynamic data and the classes with the database?

With an XHTML document, how can quirks mode be triggered in Internet Explorer?