What Ruby and Rails Developers Ought To Know? [closed]

Question

Senior

• Analyse and profile an application for performance and memory issues
• Analyses and profile an application for security issues
• Understand database modeling and query analysis
• Tune a production deployment (Passenger, Thin, Apache etc)
• Understand and use Ruby metaprogramming
• Mentoring skills
• Communication skills
• Planning and Estimation

Mid-level

• Setup and deploy a Rails App for production
• Understand the Rails stack - callbacks, filters, plugins, engines, gems, rack
• Understand and use Active Record associations
• Understand and use scopes to define model abstractions
• Define tests using Cucumber and rSpec
• Understand and use Object Orientation
• Understand and use Design Patterns (explain what they are, know some basic patterns)

Entry Level

• Create and setup a Rails environment
• Use generators to create models, controllers and migrations
• Create and use a migration to manage the database
• Create a unit test using rspec/etc
• Create a model and basic validations
• Handle a GET request using a Controller, Model, and View
• Handle a POST request using a Controller, Model, and View
• Basic HTML, CSS and JavaScript
• Basic GIT - clone, commit, push

I wrote down some questions and answers that I have experienced from my interviews and some additional logic questions that you might find useful.

Here it is: http://anilpunjabi.tumblr.com/post/25948339235/ruby-and-rails-interview-questions-and-answers

Enjoy !!!

I think for the seniority level you should be able to answer most of the following questions:

Here is my blog link.