Python MCQ

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

• Which of the following blocks will be executed whether an exception is thrown or not?
  ক

  except

  খ

  else

  গ

  finally

  ঘ

  assert
• _______________________ exceptions are raised as a result of an error in opening a particular file.
  ক

  ValueError

  খ

  TypeError

  গ

  ImportError

  ঘ

  IOError
• An exception is ____________
  ক

  an object

  খ

  a special function

  গ

  a standard module

  ঘ

  a module
• Syntax errors are also known as parsing errors.
  ক

  True

  খ

  False
• Which of the following is not a standard exception in Python?
  ক

  NameError

  খ

  IOError

  গ

  AssignmentError

  ঘ

  ValueError
• Which of the following is not an exception handling keyword in Python?
  ক

  try

  খ

  except

  গ

  accept

  ঘ

  finally
• What happens when ‘1’ == 1 is executed?
  ক

  we get a True

  খ

  we get a False

  গ

  an TypeError occurs

  ঘ

  a ValueError occurs
• When is the finally block executed?
  ক

  when there is no exception

  খ

  when there is an exception

  গ

  only if some condition that has been specified is satisfied

  ঘ

  always
• Can one block of except statements handle multiple exception? b) yes, like except c) no d) none of the mentioned
  ক

  yes, like except TypeError, SyntaxError

  খ

  ,…

  গ

  ,…

  ঘ

  ,…
• When will the else part of try-except-else be executed?
  ক

  always

  খ

  when an exception occurs

  গ

  when no exception occurs

  ঘ

  when an exception occurs in to except block
• How many except statements can a try-except block have?
  ক

  zero

  খ

  one

  গ

  more than one

  ঘ

  more than zero
• Which of the following is false about protected class members?
  ক

  They begin with one underscore

  খ

  They can be accessed by subclasses

  গ

  They can be accessed by name mangling method

  ঘ

  They can be accessed within a class
• The purpose of name mangling is to avoid unintentional access of private class members.
  ক

  True

  খ

  False
• Private members of a class cannot be accessed.
  ক

  True

  খ

  False
• Methods of a class that provide access to private members of the class are called as ______ and ______
  ক

  getters/setters

  খ

  __repr__/__str__

  গ

  user-defined functions/in-built functions

  ঘ

  __init__/__del__
• Which of the following is the most suitable definition for encapsulation?
  ক

  Ability of a class to derive members of another class as a part of its own definition

  খ

  Means of bundling instance variables and methods in order to restrict access to certain class members

  গ

  Focuses on variables and passing of variables to functions

  ঘ

  Allows for implementation of elegant software that is well designed and easily modified
• Which of these is not a fundamental features of OOP?
  ক

  Encapsulation

  খ

  Inheritance

  গ

  Instantiation

  ঘ

  Polymorphism
• Overriding means changing behaviour of methods of derived class methods in the base class.
  ক

  True

  খ

  False
• A class in which one or more methods are only implemented to raise an exception is called an abstract class.
  ক

  True

  খ

  False
• What is the use of duck typing?
  ক

  More restriction on the type values that can be passed to a given method

  খ

  No restriction on the type values that can be passed to a given method

  গ

  Less restriction on the type values that can be passed to a given method

  ঘ

  Makes the program code smaller
• What is the biggest reason for the use of polymorphism?
  ক

  It allows the programmer to think at a more abstract level

  খ

  There is less program code to write

  গ

  The program will have a more elegant design and will be easier to maintain and update

  ঘ

  Program code takes up less space
• Which of the following best describes polymorphism?
  ক

  Ability of a class to derive members of another class as a part of its own definition

  খ

  Means of bundling instance variables and methods in order to restrict access to certain class members

  গ

  Focuses on variables and passing of variables to functions

  ঘ

  Allows for objects of different types and behaviour to be treated as the same general type
• Method issubclass() checks if a class is a subclass of another class.
  ক

  True

  খ

  False
• Which of the following statements isn’t true?
  ক

  A non-private method in a superclass can be overridden

  খ

  A derived class is a subset of superclass

  গ

  The value of a private variable in the superclass can be changed in the subclass

  ঘ

  When invoking the constructor from a subclass, the constructor of superclass is automatically invoked
• What does single-level inheritance mean?
  ক

  A subclass derives from a class which in turn derives from another class

  খ

  A single superclass inherits from multiple subclasses

  গ

  A single subclass derives from a single superclass

  ঘ

  Multiple base classes inherit a single derived class
• What does built-in function help do in context of classes?
  ক

  Determines the object name of any value

  খ

  Determines the class identifiers of any value

  গ

  Determines class description of any built-in type

  ঘ

  Determines class description of any user-defined built-in type
• What does built-in function type do in context of classes?
  ক

  Determines the object name of any value

  খ

  Determines the class name of any value

  গ

  Determines class description of any value

  ঘ

  Determines the file name of any value
• Suppose B is a subclass of A, to invoke the __init__ method in A from B, what is the line of code you should write?
  ক

  A.__init__(self)

  খ

  B.__init__(self)

  গ

  A.__init__(B)

  ঘ

  B.__init__(A)
• When defining a subclass in Python that is meant to serve as a subtype, the subtype Python keyword is used.
  ক

  True

  খ

  False
• All subclasses are a subtype in object-oriented programming.
  ক

  True

  খ

  False