Ruby Programming · all questions

Control Structures in Ruby
practice.

Practice every MCQ with options. Use Show answers when you want the correct option and solution.

120

Questions

1/6

Page

Pick an option on a question to see the right answer and solution.

Q1

What is the keyword used to define a conditional statement in Ruby?

Select an option to see the answer and solution.

Q2

Which of the following loops in Ruby is executed at least once?

Select an option to see the answer and solution.

Q3

In Ruby, what does the unless keyword do?

Select an option to see the answer and solution.

Q4

What is the purpose of the case statement in Ruby?

Select an option to see the answer and solution.

Q5

Which loop in Ruby allows you to iterate over a collection of elements?

Select an option to see the answer and solution.

Q6

What is the result of the expression 5 > 3 ? "Yes" : "No" in Ruby?

Select an option to see the answer and solution.

Q7

What does the break keyword do in a loop in Ruby?

Select an option to see the answer and solution.

Q8

Which of the following is NOT a comparison operator in Ruby?

Select an option to see the answer and solution.

Q9

What is the purpose of the redo keyword in Ruby?

Select an option to see the answer and solution.

Q10

What is the output of the following code snippet?

x = 10
unless x > 15
  puts "Hello"
end

Select an option to see the answer and solution.

Q11

What does the `next` keyword do in a loop in Ruby?

Select an option to see the answer and solution.

Q12

In Ruby, what does the `elsif` keyword allow you to do?

Select an option to see the answer and solution.

Q13

Which of the following is NOT a logical operator in Ruby?

Select an option to see the answer and solution.

Q14

What is the output of the following code snippet?

x = 5
while x > 0
  puts x
  x -= 1
end

Select an option to see the answer and solution.

Q15

What does the `retry` keyword do in Ruby?

Select an option to see the answer and solution.

Q16

Which loop in Ruby allows you to execute code while a condition is true?

Select an option to see the answer and solution.

Q17

What does the unless keyword do in Ruby?

Select an option to see the answer and solution.

Q18

What is the purpose of the next keyword in a loop in Ruby?

Select an option to see the answer and solution.

Q19

What is the output of the following code snippet?

x = 1
loop do
  puts x
  x += 1
  break if x > 5
end

Select an option to see the answer and solution.

Q20

In Ruby, what is the purpose of the `case` statement when combined with `when` clauses?

Select an option to see the answer and solution.