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 }

How to create ruby object?

How to read a file in Ruby?

What method might you use to remove duplicate values from an array?

What are the different environment variables present in the ruby?

Explain the three levels of access control for ruby methods?

what is the difference between String and Symbol?

How many iterators are there in ruby?

Tell me what is the difference between calling super() and super call?

Describe the environment variables present in Ruby?

Is ruby a strongly typed or a weakly typed language?

Difference between nil and false in ruby?

Tell us what is class libraries in ruby?

What is request.xhr?

What is the difference between extend and include?

How is class methods defined in ruby?

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