Ruby Programming MCQ

Test your knowledge with important Ruby Programming MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30 + more Ruby Programming MCQs at Bissoy

• Array of arrays are called multidimensional arrays.
  ক

  True

  খ

  False
• It is possible to make array of booleans.
  ক

  True

  খ

  False
• Each element in an array has an index and the starting index is index 1.
  ক

  True

  খ

  False
• Arrays can be used to store multiple values in one single variable.
  ক

  True

  খ

  False
• What does the 1..10 indicate?
  ক

  Inclusive range

  খ

  Exclusive range

  গ

  Both inclusive and exclusive range

  ঘ

  None of the mentioned
• What does the 1…10 indicate?
  ক

  Inclusive range

  খ

  Exclusive range

  গ

  Both inclusive and exclusive range

  ঘ

  None of the mentioned
• The complement of while loop is until loop.
  ক

  True

  খ

  False
• While loop checks the condition and the loop keeps on running till the condition is true, it stops when the condition becomes false.
  ক

  True

  খ

  False
• Ruby does not support ++ operator, it only supports += operator.
  ক

  True

  খ

  False
• What does the **= assignment operator do?
  ক

  Multiplies the value twice

  খ

  It is used as exponent like 2**3=8

  গ

  It is the multiplication operator.

  ঘ

  None of the mentioned
• Which of the following is a valid assignment operator?
  ক

  +=

  খ

  -=

  গ

  *=

  ঘ

  All of the mentioned
• What will the following expression evaluate to? !true && !false
  ক

  True

  খ

  False

  গ

  Error

  ঘ

  None of the mentioned
• What will the following expression evaluate to? (true && false) || (!true)
  ক

  True

  খ

  False

  গ

  Error

  ঘ

  None of the mentioned
• What will the following expression evaluate to? true || false
  ক

  True

  খ

  False

  গ

  Error

  ঘ

  None of the mentioned
• What will the following expression evaluate to? true && false
  ক

  True

  খ

  False

  গ

  Error

  ঘ

  None of the mentioned
• The boolean operator && only result in true when both the values are true?
  ক

  True

  খ

  False
• Which of the following is a valid boolean operator?
  ক

  and(&&)

  খ

  or(||)

  গ

  not(!)

  ঘ

  All of the mentioned
• Boolean opeartors are also known as logical operators.
  ক

  True

  খ

  False
• Which of the following are used for comparison?
  ক

  Equal to

  খ

  Not equal to

  গ

  Less than or greater than

  ঘ

  All of the mentioned
• Assignment operator is also known as relational operator.
  ক

  True

  খ

  False
• The ‘=’ is used for assigning value to variable?
  ক

  True

  খ

  False
• The == ‘is equal to’ is known as relational operator.
  ক

  True

  খ

  False
• A case statement compares the expression specified by case and that specified by when using the === operator and executes the code of the when clause that matches.
  ক

  True

  খ

  False
• The expression specified by the when clause is evaluated as the left operand. If no when clauses match, case executes the code of the else clause.
  ক

  True

  খ

  False
• The elsif statement can add many alternatives to if/else statements.
  ক

  True

  খ

  False
• The elsif conditional statement is written with an expression.
  ক

  True

  খ

  False
• Which of the following is valid conditional statement in Ruby?
  ক

  elseif

  খ

  elsif

  গ

  else if

  ঘ

  elseiff
• It is necessary that always if should come with else block?
  ক

  True

  খ

  False
• Which of the following is valid conditional statement?
  ক

  else

  খ

  els

  গ

  if else

  ঘ

  None of the mentioned
• What is the use of else statement?
  ক

  When the if condition is false then the next else condition will get executed

  খ

  When the if condition is false then the elsif condition will get executed

  গ

  When the if condition is false and if else condition is true then only it will get executed

  ঘ

  None of the mentioned