Free Ruby Association Ruby-Programmer-Gold Exam Questions

Become Ruby Association Certified with updated Ruby-Programmer-Gold exam questions and correct answers

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Total 160 Questions | Updated On: Apr 15, 2026

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Question 1

Analyze the following Ruby code snippet in the context of class design and instance variable management:class Book attr_reader :title, :author @@total_books = 0 def self.total_books @@total_books end def initialize(title, author) @title = title @author = author @@total_books += 1 endendclass Library attr_reader :books def initialize @books = [] end def add_book(book) @books

A : undefined method 'total_books' for Library:Class, undefined method 'total_books_in_library' for Library:Class

B : 2, undefined method 'total_books_in_library' for Library:Class

C : undefined method 'total_books' for Library:Class, 2

D : 2, 2

Answer: C

Question 2

In Ruby programming, the correct use and understanding of operators is essential. Analyze the following Ruby code snippet:a = 8b = 4result1 = a != bresult2 = a & b == 4result3 = (a * 2) / b Based on this code, which two of the following statements are true regarding the use and precedence of the operators?

A : result2 is true as the bitwise AND (&) operation has higher precedence than the equality (==) operator.

B : result1 evaluates to true because != checks if a and b are not equal.

C : result1 is false since != is a strict inequality operator and a is greater than b.

D : In result2, the equality (==) operation is evaluated before the bitwise AND (&) operation.

E : result3 equals 4 because division (/) has higher precedence than multiplication (*).

Answer: B,D

Question 3

Consider the following Ruby code snippet that incorporates the use of refinements:module StringAdjustments refine String do def emphasize "#{self}!" end endend class Writer using StringAdjustments def emphasize_statement(statement) statement.emphasize endend writer = Writer.newexternal_statement = "Hello".emphasize result1 = writer.emphasize_statement("Hello")result2 = external_statement What will be the values of result1 and result2, respectively?

A : NoMethodError, "Hello!"

B : NoMethodError, NoMethodError

C : "Hello!", NoMethodError

D : "Hello!", "Hello!"

Answer: C

Question 4

In Ruby, effectively using blocks is essential for controlling flow and data processing. Review the following Ruby code snippet:numbers = [1, 2, 3, 4, 5]sum = 0numbers.each { |number| sum += number }squared_numbers = numbers.map { |number| number ** 2 } Based on this code, which two of the following statements are correct about the blocks used in the context of the each and map methods?

A : The each block creates a new array containing each number squared.

B : The map block returns a new array with the square of each number, while the original numbers array remains unchanged.

C : Both each and map blocks modify the original numbers array.

D : The each block iteratively adds each number in the numbers array to sum, resulting in the sum of all numbers.

E : The map block modifies the original numbers array to contain the square of each number.

Answer: B,D

Question 5

Analyze the following Ruby code snippet that utilizes regular expressions for string processing:class EmailExtractor EMAIL_REGEX = /(\b[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Z|a-z]{2,}\b)/ def self.extract_from(text) text.scan(EMAIL_REGEX).flatten endend text1 = "Contact us at support@example.com for assistance"text2 = "Send your feedback to: feedback@example.co.uk and admin@example.com"text3 = "No emails here!" result1 = EmailExtractor.extract_from(text1)result2 = EmailExtractor.extract_from(text2)result3 = EmailExtractor.extract_from(text3) What will be the values of result1, result2, and result3, respectively?

A : ["support@example.com"], ["feedback@example.co.uk", "admin@example.com"], []

B : ["support@example.com"], ["feedback@example.co.uk"], ["admin@example.com"], []

C : ["support@example.com"], nil, []

D : ["support@example.com"], ["feedback@example.co.uk", "admin@example.com"], nil

Answer: A

Page: 1 / 32

Total 160 Questions | Updated On: Apr 15, 2026

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