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

Ruby Interview Questions

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Can you please explain what is the difference between string and symbol?

Tell me the role of modules and mixins in ruby?

Tell me what is the command to create a migration?

Tell me what is the difference between active support's “hashwithindifferent” and ruby's “hash” ?

Do you know about dig, float and max?

Do you know how ruby looks up a method to invoke?

As you know ruby provides four types of variables. List them and provide a brief explanation for each?

Tell me what are blocks and procs?

Do you know what is the defined operator?

Tell us the types of variables available in ruby class?

Explain me what is the difference between symbol and string?

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

Please explain what is mvc and why do we use it?

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

Tell me how symbol is different from variables?

Un-Answered Questions { Ruby }

Please explain the three levels of access control for ruby methods?

Why Ruby is known as a language of flexibility?

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

In how many ways you can compare Ruby string?

Tell me how you define instance variable, global variable and class variable in ruby?

How an exception is handled in Ruby?

What is RubyGems in Ruby programming language?

What is ruby software and where and when it is usefull.

How does a symbol differ from a string?

Explain how can we define ruby regular expressions?

What is yield statement in ruby.

difference between activesupport's “hashwithindifferentaccess” and ruby's “hash”?

Explain ruby strings.

what is the difference between a gem and a plugin in Ruby?

Tell us what is the difference between dynamic and static scaffolding?

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