21. Which keyword is used to refer to the current instance of a class in Ruby? A. self B. instance C. @ D. this Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option A No explanation is given for this question Let's Discuss on Board
22. What is the method used to define a class variable in Ruby? A. @@variable_name B. @variable_name C. def variable_name D. self.variable_name Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option A No explanation is given for this question Let's Discuss on Board
23. What is the method used to access class variables in Ruby? A. Using accessor methods B. Using instance methods C. Using class methods D. Using global variables Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option C No explanation is given for this question Let's Discuss on Board
24. What is the purpose of the attr_accessor method in Ruby classes? A. To create getter and setter methods for instance variables B. To define class methods C. To define instance methods D. To create new instances Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option A No explanation is given for this question Let's Discuss on Board
25. What is the syntax for defining an instance method in Ruby? A. def method_name B. def self.method_name C. def method_name.self D. def method_name.static Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option A No explanation is given for this question Let's Discuss on Board
26. Which method is used to define getter and setter methods for instance variables in Ruby? A. attr_accessor B. get_set C. setter_getter D. set_get Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option A No explanation is given for this question Let's Discuss on Board
27. What is the purpose of the attr_reader method in Ruby classes? A. To create only getter methods for instance variables B. To create only setter methods for instance variables C. To create both getter and setter methods for instance variables D. To create instance methods Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option A No explanation is given for this question Let's Discuss on Board
28. Which keyword is used to call a method on an object in Ruby? A. call B. invoke C. execute D. none of the above Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option D No explanation is given for this question Let's Discuss on Board
29. What is the syntax for defining a class in Ruby? A. class MyClass B. class C. def class D. define class Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
30. How do you access class variables in Ruby? A. Using accessor methods B. Using instance methods C. Using class methods D. Using global variables Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option C No explanation is given for this question Let's Discuss on Board
