Ruby Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Ruby Interview Questions

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How ruby looks up a method to invoke?

What is mvc and why do we use it?

Explain the difference in scope for these two variables: @@name and @name?

How do you remove nil values in array using ruby?

Explain each of the following operators and how and when they should be used: ==, ===, eql?, Equal?

What are blocks and procs?

What is the difference between ruby 1.9 and ruby 2.0?

Explain the types of variables available in ruby class?

Explain the difference between a single quote and double quote?

Can you call a private method outside a ruby class using its object?

Explain the role of thread pooling in relation to the thread lifecycle in ruby?

How symbol is different from variables?

What is the difference between extend and include?

Explain about the defined operator in ruby?

How would you freeze an object in ruby? Can you provide a simple example?

Un-Answered Questions { Ruby }

what is the role of sub-directory app/controllers and app/helpers?

What is RubyGems in Ruby programming language?

What are the loops in ruby?

Explain the use of global variable $ in Ruby?

Is ruby a statically typed or a dynamically typed language?

Explain Ruby object?

Explain about class libraries in ruby?

What does mri most commonly stand for?

Tell me what is the difference between ruby 1.9 and ruby 2.0?

How to access Ruby array elements? How many methods are used to access Ruby elements?

List some features of ruby?

What does irb stand for?

Is ruby whitespace-dependent?

Tell me an array [1,2,34,5,6,7,8,9], product it using a method?

Tell me what are blocks and procs?

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