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 }

Can you list out the few features of ruby?

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

Explain the role of thread pooling in relation to the thread lifecycle in ruby?

What is rvm?

What are some built-in ruby class exceptions.

What is Ruby programming language?

Interpolation is a very important process in Ruby, comment.

What is the difference between extend and include?

what is the difference between a single quote and double quote?

Explain about Float, Dig and Max?

Tell me what is the command to create a migration?

What are class libraries in Ruby?

What is the use of interpolation in ruby?

mention what is the difference between a single quote and double quote?

What are freezing string in Ruby?

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