MCQ Exam Test

Q1

What is the output of the following code: class Parent: def init(self): print('Parent constructor') class Child(Parent): def init(self): print('Child constructor') obj = Child()

A Child constructor
B Parent constructor
C An error will occur
D Child Parent

Q2

What will be the output of the following Python code? def add(c,k): c.test=c.test+1 k=k+1 class A: def init(self): self.test = 0 def main(): Count=A() k=0 for i in range(0,25): add(Count,k) print("Count.test=", Count.test) print("k =", k) main()

A Exception is thrown
B Count.test=25 k=25
C Count.test=25 k=0
D Count.test=0 k=0

Q3

What is the difference between a class variable and an instance variable in Python?

A A class variable is shared among all instances of a class, while an instance variable is unique to each instance
B They are the same
C An instance variable is shared among all instances
D A class variable is unique to each instance

Q4

How can you create a private attribute in a Python class?

A By prefixing the attribute name with an underscore (_)
B By using the private keyword
C By using the hidden keyword
D By using the secure keyword

Q5

How can you access a class variable in Python?

A Using the class name and dot notation
B Using the self keyword
C Using the cls keyword
D Using the object keyword

Q6

Which operator is overloaded by the or() function?

A ||
B |
C //
D /

Q7

What does print(Test.name) display (assuming Test is the name of the class)?

A ()
B Exception is thrown
C Test
D __main__

Q8

What will be the output of the following Python code? class stud: def init(self, roll_no, grade): self.roll_no = roll_no self.grade = grade def display (self): print("Roll no : ", self.roll_no, ", Grade: ", self.grade) stud1 = stud(34, 'S') stud1.age=7 print(hasattr(stud1, 'age'))

A Error as age isn't defined
B True
C False
D 7

Q9

What is the purpose of the @classmethod decorator in Python classes?

A It defines a method that belongs to the class and not the instance
B It defines a static method
C It defines a constructor
D It defines a destructor

Q10

. . . . . . . . is used to create an object.

A class
B constructor
C User-defined functions
D In-built functions

Q11

Which of the following Python code will print True? a = foo(2) b = foo(3) print(a < b)

A class foo: def __init__(self, x): self.x = x def __lt__(self, other): if self.x < other.x: return False else: return True
B class foo: def __init__(self, x): self.x = x def __less__(self, other): if self.x > other.x: return False else: return True
C class foo: def __init__(self, x): self.x = x def __lt__(self, other): if self.x < other.x: return True else: return False
D class foo: def __init__(self, x): self.x = x def __less__(self, other): if self.x < other.x: return False else: return True

Q12

What is getattr() used for?

A To access the attribute of the object
B To delete an attribute
C To check if an attribute exists or not
D To set an attribute

Q13

Is the following Python code valid? class B(object): def first(self): print("First method called") def second(): print("Second method called") ob = B() B.first(ob)

A It isn't as the object declaration isn't right
B It isn't as there isn't any __init__ method for initializing class members
C Yes, this method of calling is called unbounded method call
D Yes, this method of calling is called bounded method call

Q14

What is a constructor in Python classes?

A A special method that is automatically called when an object is created
B A built-in function
C A method that creates an object
D A method that destroys an object

Q15

Which function overloads the + operator?

A __add__()
B __plus__()
C __sum__()
D none of the mentioned

Q16

What is the output of the following code: class Parent: def show(self): print('Parent method') class Child(Parent): pass obj = Child() obj.show()

A Parent method
B An error will occur
C Child method
D obj

Q17

What is setattr() used for?

A To access the attribute of the object
B To set an attribute
C To check if an attribute exists or not
D To delete an attribute

Q18

Which function overloads the // operator?

A __div__()
B __ceildiv__()
C __floordiv__()
D __truediv__()

Q19

What is the output of the following code: class MyClass: x = 5 obj = MyClass() print(obj.x)

A 5
B An error will occur
C obj
D MyClass

Q20

The assignment of more than one function to a particular operator is . . . . . . . .

A Operator over-assignment
B Operator overriding
C Operator overloading
D Operator instance

Q21

. . . . . . . . represents an entity in the real world with its identity and behaviour.

A A method
B An object
C A class
D An operator

Q22

What are the methods which begin and end with two underscore characters called?

A Special methods
B In-built methods
C User-defined methods
D Additional methods

Q23

Which function overloads the == operator?

A __eq__()
B __equ__()
C __isequal__()
D none of the mentioned

Q24

What is the purpose of the @staticmethod decorator in Python classes?

A It defines a method that belongs to the class rather than an instance
B It defines a static attribute
C It defines a global function
D It defines a constructor

Q25

What is Instantiation in terms of OOP terminology?

A Deleting an instance of class
B Modifying an instance of class
C Copying an instance of class
D Creating an instance of class

python-programing - Part 66

What is the output of the following code: class Parent: def init(self): print('Parent constructor') class Child(Parent): def init(self): print('Child constructor') obj = Child()

What will be the output of the following Python code? def add(c,k): c.test=c.test+1 k=k+1 class A: def init(self): self.test = 0 def main(): Count=A() k=0 for i in range(0,25): add(Count,k) print("Count.test=", Count.test) print("k =", k) main()

What is the difference between a class variable and an instance variable in Python?

How can you create a private attribute in a Python class?

How can you access a class variable in Python?

Which operator is overloaded by the or() function?

What does print(Test.name) display (assuming Test is the name of the class)?

What will be the output of the following Python code? class stud: def init(self, roll_no, grade): self.roll_no = roll_no self.grade = grade def display (self): print("Roll no : ", self.roll_no, ", Grade: ", self.grade) stud1 = stud(34, 'S') stud1.age=7 print(hasattr(stud1, 'age'))

What is the purpose of the @classmethod decorator in Python classes?

. . . . . . . . is used to create an object.

Which of the following Python code will print True? a = foo(2) b = foo(3) print(a < b)

What is getattr() used for?

Is the following Python code valid? class B(object): def first(self): print("First method called") def second(): print("Second method called") ob = B() B.first(ob)

What is a constructor in Python classes?

Which function overloads the + operator?

What is the output of the following code: class Parent: def show(self): print('Parent method') class Child(Parent): pass obj = Child() obj.show()

What is setattr() used for?

Which function overloads the // operator?

What is the output of the following code: class MyClass: x = 5 obj = MyClass() print(obj.x)

The assignment of more than one function to a particular operator is . . . . . . . .

. . . . . . . . represents an entity in the real world with its identity and behaviour.

What are the methods which begin and end with two underscore characters called?

Which function overloads the == operator?

What is the purpose of the @staticmethod decorator in Python classes?

What is Instantiation in terms of OOP terminology?

Report a problem

What is the output of the following code: class Parent: def init(self): print('Parent constructor') class Child(Parent): def init(self): print('Child constructor') obj = Child()

What will be the output of the following Python code? def add(c,k): c.test=c.test+1 k=k+1 class A: def __init__(self): self.test = 0 def main(): Count=A() k=0 for i in range(0,25): add(Count,k) print("Count.test=", Count.test) print("k =", k) main()

What is the difference between a class variable and an instance variable in Python?

How can you create a private attribute in a Python class?

How can you access a class variable in Python?

Which operator is overloaded by the __or__() function?

What does print(Test.__name__) display (assuming Test is the name of the class)?

What will be the output of the following Python code? class stud: def __init__(self, roll_no, grade): self.roll_no = roll_no self.grade = grade def display (self): print("Roll no : ", self.roll_no, ", Grade: ", self.grade) stud1 = stud(34, 'S') stud1.age=7 print(hasattr(stud1, 'age'))

What is the purpose of the @classmethod decorator in Python classes?

. . . . . . . . is used to create an object.

Which of the following Python code will print True? a = foo(2) b = foo(3) print(a < b)

What is getattr() used for?

Is the following Python code valid? class B(object): def first(self): print("First method called") def second(): print("Second method called") ob = B() B.first(ob)

What is a constructor in Python classes?

Which function overloads the + operator?

What is the output of the following code: class Parent: def show(self): print('Parent method') class Child(Parent): pass obj = Child() obj.show()

What is setattr() used for?

Which function overloads the // operator?

What is the output of the following code: class MyClass: x = 5 obj = MyClass() print(obj.x)

The assignment of more than one function to a particular operator is . . . . . . . .

. . . . . . . . represents an entity in the real world with its identity and behaviour.

What are the methods which begin and end with two underscore characters called?

Which function overloads the == operator?

What is the purpose of the @staticmethod decorator in Python classes?

What is Instantiation in terms of OOP terminology?

What will be the output of the following Python code? def add(c,k): c.test=c.test+1 k=k+1 class A: def init(self): self.test = 0 def main(): Count=A() k=0 for i in range(0,25): add(Count,k) print("Count.test=", Count.test) print("k =", k) main()

Which operator is overloaded by the or() function?

What does print(Test.name) display (assuming Test is the name of the class)?

What will be the output of the following Python code? class stud: def init(self, roll_no, grade): self.roll_no = roll_no self.grade = grade def display (self): print("Roll no : ", self.roll_no, ", Grade: ", self.grade) stud1 = stud(34, 'S') stud1.age=7 print(hasattr(stud1, 'age'))