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 }

Explain about garbage collection feature of ruby?

Explain the garbage collection feature of ruby?

Explain about portability?

Describe class libraries in Ruby?

How does ruby deal with extremely large numbers?

Explain Ruby exceptions?

Is ruby a strongly typed or a weakly typed language?

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

What is the difference between “#==” and “#equal?”

Explain Ruby hashes?

Are numeric objects mutable in ruby?

How to check whether a directory exist or not in Ruby?

What are the case statement in ruby?

what is the difference between Procs and Blocks?

Do you know about dig, float and max?

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