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 }

Do you know when self.up and self.down method is used?

what is the purpose of the rakefile available in the demo directory in ruby?

Explain the three levels of access control for ruby methods?

How an exception is handled in Ruby?

What are ruby blocks.

Why Ruby is known as a language of flexibility?

What things we can define in the model?

How many types of associations relationships does a model has?

what is the Notation used for denoting class variables in Ruby?

What does mri most commonly stand for?

Explain about variables?

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

Explain when self.up and self.down method is used?

What is ruby class?

Tell me what does ruby name refers to?

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