Certification Test


Que No. 1 ) What is Ruby primarily known for? A.) Game development B.) Web development C.) Mobile app development D.) Scientific computing
Que No. 2 ) In Ruby, which keyword is used to define a class? A.) class B.) def C.) module D.) include
Que No. 3 ) Which symbol is used to define a symbol in Ruby? A.) $ B.) @ C.) : D.) #
Que No. 4 ) What is the result of 5 + "5".to_i in Ruby? A.) 10 B.) "55" C.) Error D.) 55
Que No. 5 ) In Ruby, how do you print output to the console? A.) console.log("Hello, Ruby!") B.) puts "Hello, Ruby!" C.) print("Hello, Ruby!") D.) echo "Hello, Ruby!"
Que No. 6 ) Which data type is used to store whole numbers in Ruby? A.) double B.) float C.) integer D.) char
Que No. 7 ) What is the purpose of the self keyword in Ruby? A.) To define a class B.) To create an instance of a class C.) To refer to the current object or class D.) To declare a variable
Que No. 8 ) How do you define a constant in Ruby? A.) constant x = 10 B.) x = 10 (constant) C.) CONST x = 10 D.) X = 10
Que No. 9 ) Which of the following is not a valid variable name in Ruby? A.) my_var B.) _var C.) 123var D.) var123
Que No. 10 ) What is the purpose of the if statement in Ruby? A.) To define a loop B.) To execute code based on a condition C.) To create an object D.) To declare a variable