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 }

Write the command to get installed Ruby version in your system?

What are the operators available in ruby?

List some features of ruby?

How many iterators are there in ruby?

Explain about ruby code blocks?

What function converts all html special symbols to html entities in ruby?

What is the difference between static and dynamic scaffolding?

Tell us what is class libraries in ruby?

What is the difference between a class and a module?

Tell me how can you declare a block in ruby?

What is the difference between a statement and an expression in ruby?

What happens when a value is too big for fixnum?

Do you know about dig, float and max?

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

Explain the garbage collection feature of ruby?

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