The error displayed in the code shown below is: import itertools l1=(1, 2, 3) l2=[4, 5, 6] l=itertools.chain(l1, l2) print(next(l1))

‘list’ object is not iterator

‘tuple’ object is not iterator

What is the output of the following code? def foo(): try: return 1 finally: return 2 k = foo() print(k)

error, there is more than one return statement in a single try-finally block

When is the finally block executed?

only if some condition that has been specified is satisfied

Can one block of except statements handle multiple exception?

yes, like except [TypeError, SyntaxError].

yes, like except TypeError, SyntaxError [,…].

yes, like except [TypeError, SyntaxError].

Is the following code valid? try: # Do something except: # Do something finally: # Do something

no, finally must come before except

no, there is no such thing as finally

no, finally cannot be used with except

no, finally must come before except

When will the else part of try-except-else be executed?

when an exception occurs in to except block

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

user-defined functions/in-built functions

Which of the following is the most suitable definition for encapsulation?

Focuses on variables and passing of variables to functions

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

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

Focuses on variables and passing of variables to functions

Allows for implementation of elegant software that is well designed and easily modified

What is the use of duck typing?

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

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

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

What is the biggest reason for the use of polymorphism?

Program code takes up less space

It allows the programmer to think at a more abstract level

There is less program code to write

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

Program code takes up less space

Which of the following best describes polymorphism?

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

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

Focuses on variables and passing of variables to functions

Allows for objects of different types and behaviour to be treated as the same general type

What is the output of the following piece of code? class A: def __init__(self): self._x = 5 class B(A): def display(self): print(self._x) def main(): obj = B() obj.display() main()

Error, private class member can’t be accessed in a subclass

Error, invalid syntax for object declaration

Error, private class member can’t be accessed in a subclass

What is the output of the following piece of code when executed in the Python shell? >>> class A: pass >>> class B(A): pass >>> obj=B() >>> isinstance(obj,A)

Wrong syntax for isinstance() method

Which of the following statements isn’t true?

When invoking the constructor from a subclass, the constructor of superclass is automatically invoked

A non-private method in a superclass can be overridden

A derived class is a subset of superclass

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

When invoking the constructor from a subclass, the constructor of superclass is automatically invoked

What does single-level inheritance mean?

Multiple base classes inherit a single derived class

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

A single superclass inherits from multiple subclasses

A single subclass derives from a single superclass

Multiple base classes inherit a single derived class

What does built-in function help do in context of classes?

Determines class description of any user-defined built-in type

Determines the object name of any value

Determines the class identifiers of any value

Determines class description of any built-in type

Determines class description of any user-defined built-in type

What does built-in function type do in context of classes?

Determines class description of any value

Determines the object name of any value

Determines the class name of any value

Determines class description of any value

Determines the file name of any value

What is the output of the following piece of code? class A: def __init__(self, x= 1): self.x = x class der(A): def __init__(self,y = 2): super().__init__() self.y = y def main(): obj = der() print(obj.x, obj.y) main()

Error, the syntax of the invoking method is wrong

The program runs fine but nothing is printed

What is the output of the following piece of code? class Test: def __init__(self): self.x = 0 class Derived_Test(Test): def __init__(self): Test.__init__(self) self.y = 1 def main(): b = Derived_Test() print(b.x,b.y) main()

Error, the syntax of the invoking method is wrong

Error because class B inherits A but variable x isn’t inherited

Error, the syntax of the invoking method is wrong

What is the output of the following piece of code? class A(): def disp(self): print("A disp()") class B(A): pass obj = B() obj.disp()

Error because when object is created, argument must be passed

What is the output of the following piece of code? class Test: def __init__(self): self.x = 0 class Derived_Test(Test): def __init__(self): self.y = 1 def main(): b = Derived_Test() print(b.x,b.y) main()

Error because when object is created, argument must be passed like Derived_Test(1)

Error because class B inherits A but variable x isn’t inherited

Error because when object is created, argument must be passed like Derived_Test(1)

Which of the following statements is wrong about inheritance?

Inheritance is one of the features of OOP

Protected members of a class can be inherited

The inheriting class is called a subclass

Private members of a class can be inherited and accessed

Inheritance is one of the features of OOP

1007 + Mcqs in Python in Technical Programming Page 2 McqOptions

51.	Which one of these is floor division
A.	/
B.	//
C.	%
D.	none
Answer» C. %

Discussion

52.	Which of the following blocks will be executed whether an exception is thrown or not?
A.	except
B.	else
C.	finally
D.	assert
Answer» D. assert

Discussion

53.	_______________________ exceptions are raised as a result of an error in opening a particular file.
A.	ValueError
B.	TypeError
C.	ImportError
D.	IOError
Answer» E.

Discussion

54.	An exception is:
A.	an object
B.	a special function
C.	a standard module
D.	a module
Answer» B. a special function

Discussion

55.	Which of the following is not a standard exception in Python?
A.	NameError
B.	IOError
C.	AssignmentError
D.	ValueError
Answer» D. ValueError

Discussion

56.	Identify the type of error in the codes shown below. Print(“Good Morning”) print(“Good night)
A.	Syntax, Syntax
B.	Semantic, Syntax
C.	Semantic, Semantic
D.	Syntax, Semantic
Answer» C. Semantic, Semantic

Discussion

57.	What is the output of the code shown below? def getMonth(m): if m<1 or m>12: raise ValueError("Invalid") print(m) getMonth(6)
A.	ValueError
B.	Invalid
C.	6
D.	ValueError(“Invalid”)
Answer» D. ValueError(“Invalid”)

Discussion

58.	The output of the code shown below is: int('65.43')
A.	ImportError
B.	ValueError
C.	TypeError
D.	NameError
Answer» C. TypeError

Discussion

59.	What is the output of the following code, if the time module has already been imported? 4 + '3'
A.	NameError
B.	IndexError
C.	ValueError
D.	TypeError
Answer» E.

Discussion

60.	What is the output of the code shown below? t[5]
A.	IndexError
B.	NameError
C.	TypeError
D.	ValeError
Answer» C. TypeError

Discussion

61.	What is the output of the code shown below? lst = [1, 2, 3] lst[3]
A.	NameError
B.	ValueError
C.	IndexError
D.	TypeError
Answer» D. TypeError

Discussion

62.	What happens if the file is not found in the code shown below? a=False while not a: try: f_n = input("Enter file name") i_f = open(f_n, 'r') except: print("Input file not found")
A.	No error
B.	Assertion error
C.	Input output error
D.	Name error
Answer» B. Assertion error

Discussion

63.	Which of the following is not an exception handling keyword in Python?
A.	try
B.	except
C.	accept
D.	finally
Answer» D. finally

Discussion

64.	The error displayed in the code shown below is: import itertools l1=(1, 2, 3) l2=[4, 5, 6] l=itertools.chain(l1, l2) print(next(l1))
A.	‘list’ object is not iterator
B.	‘tuple’ object is not iterator
C.	‘list’ object is iterator
D.	‘tuple’ object is iterator
Answer» C. ‘list’ object is iterator

Discussion

65.	What is the output of the code shown? def f(x): for i in range(5): yield i g=f(8) print(list(g))
A.	[0, 1, 2, 3, 4]
B.	[1, 2, 3, 4, 5, 6, 7, 8]
C.	[1, 2, 3, 4, 5]
D.	[0, 1, 2, 3, 4, 5, 6, 7]
Answer» B. [1, 2, 3, 4, 5, 6, 7, 8]

Discussion

66.	What is the output of the following code? def a(): try: f(x, 4) finally: print('after f') print('after f?') a()
A.	No output
B.	after f?
C.	error
D.	after f
Answer» D. after f

Discussion

67.	What is the output of the code shown below? def f(x): yield x+1 print("test") yield x+2 g=f(10) print(next(g)) print(next(g))
A.	No output
B.	11 test 12
C.	11 test
D.	11
Answer» C. 11 test

Discussion

68.	What is the output of the code shown below? #generator def f(x): yield x+1 g=f(8) print(next(g))
A.	8
B.	9
C.	7
D.	Error
Answer» C. 7

Discussion

69.	What is the output of the code shown below? x=10 y=8 assert x>y, 'X too small'
A.	Assertion Error
B.	10 8
C.	No output
D.	108
Answer» D. 108

Discussion

70.	What happens when ‘1’ == 1 is executed?
A.	we get a True
B.	we get a False
C.	an TypeError occurs
D.	a ValueError occurs
Answer» C. an TypeError occurs

Discussion

71.	What is the output of the following? try: if '1' != 1: raise "someError" else: print("someError has not occurred") except "someError": print ("someError has occurred")
A.	someError has occurred
B.	someError has not occurred
C.	invalid code
D.	none of the mentioned
Answer» D. none of the mentioned

Discussion

72.	What is the output of the following code? def foo(): try: print(1) finally: print(2) foo()
A.	1 2
B.	1
C.	2
D.	none of the mentioned
Answer» B. 1

Discussion

73.	What is the output of the following code? def foo(): try: return 1 finally: return 2 k = foo() print(k)
A.	1
B.	2
C.	3
D.	error, there is more than one return statement in a single try-finally block
Answer» C. 3

Discussion

74.	When is the finally block executed?
A.	when there is no exception
B.	when there is an exception
C.	only if some condition that has been specified is satisfied
D.	always
Answer» E.

Discussion

75.	Can one block of except statements handle multiple exception?
A.	yes, like except TypeError, SyntaxError [,…].
B.	yes, like except [TypeError, SyntaxError].
C.	no
D.	none of the mentioned
Answer» B. yes, like except [TypeError, SyntaxError].

Discussion

76.	Is the following code valid? try: # Do something except: # Do something finally: # Do something
A.	no, there is no such thing as finally
B.	no, finally cannot be used with except
C.	no, finally must come before except
D.	yes
Answer» C. no, finally must come before except

Discussion

77.	When will the else part of try-except-else be executed?
A.	always
B.	when an exception occurs
C.	when no exception occurs
D.	when an exception occurs in to except block
Answer» D. when an exception occurs in to except block

Discussion

78.	How many except statements can a try-except block have?
A.	zero
B.	one
C.	more than one
D.	more than zero
Answer» E.

Discussion

79.	Which of these is a private data field? def Demo: def __init__(self): __a = 1 self.__b = 1 self.__c__ = 1 __d__= 1
A.	__a
B.	__b
C.	__c__
D.	__d__
Answer» C. __c__

Discussion

80.	Methods of a class that provide access to private members of the class are called as ______ and ______
A.	getters/setters
B.	__repr__/__str__
C.	user-defined functions/in-built functions
D.	__init__/__del__
Answer» B. __repr__/__str__

Discussion

81.	Which of the following is the most suitable definition for encapsulation?
A.	Ability of a class to derive members of another class as a part of its own definition
B.	Means of bundling instance variables and methods in order to restrict access to certain class members
C.	Focuses on variables and passing of variables to functions
D.	Allows for implementation of elegant software that is well designed and easily modified
Answer» C. Focuses on variables and passing of variables to functions

Discussion

82.	Which of these is not a fundamental features of OOP?
A.	Encapsulation
B.	Inheritance
C.	Instantiation
D.	Polymorphism
Answer» D. Polymorphism

Discussion

83.	What is the use of duck typing?
A.	More restriction on the type values that can be passed to a given method
B.	No restriction on the type values that can be passed to a given method
C.	Less restriction on the type values that can be passed to a given method
D.	Makes the program code smaller
Answer» D. Makes the program code smaller

Discussion

84.	What is the biggest reason for the use of polymorphism?
A.	It allows the programmer to think at a more abstract level
B.	There is less program code to write
C.	The program will have a more elegant design, and will be easier to maintain and update
D.	Program code takes up less space
Answer» D. Program code takes up less space

Discussion

85.	Which of the following best describes polymorphism?
A.	Ability of a class to derive members of another class as a part of its own definition
B.	Means of bundling instance variables and methods in order to restrict access to certain class members
C.	Focuses on variables and passing of variables to functions
D.	Allows for objects of different types and behaviour to be treated as the same general type
Answer» E.

Discussion

86.	What is the output of the following piece of code? class A: def __init__(self): self._x = 5 class B(A): def display(self): print(self._x) def main(): obj = B() obj.display() main()
A.	Error, invalid syntax for object declaration
B.	Nothing is printed
C.	5
D.	Error, private class member can’t be accessed in a subclass
Answer» D. Error, private class member can’t be accessed in a subclass

Discussion

87.	What is the output of the following piece of code when executed in the Python shell? >>> class A: pass >>> class B(A): pass >>> obj=B() >>> isinstance(obj,A)
A.	True
B.	False
C.	Wrong syntax for isinstance() method
D.	Invalid method for classes
Answer» B. False

Discussion

88.	Which of the following statements isn’t true?
A.	A non-private method in a superclass can be overridden
B.	A derived class is a subset of superclass
C.	The value of a private variable in the superclass can be changed in the subclass
D.	When invoking the constructor from a subclass, the constructor of superclass is automatically invoked
Answer» D. When invoking the constructor from a subclass, the constructor of superclass is automatically invoked

Discussion

89.	What does single-level inheritance mean?
A.	A subclass derives from a class which in turn derives from another class
B.	A single superclass inherits from multiple subclasses
C.	A single subclass derives from a single superclass
D.	Multiple base classes inherit a single derived class
Answer» D. Multiple base classes inherit a single derived class

Discussion

90.	What type of inheritance is illustrated in the following piece of code? class A(): pass class B(A): pass class C(B): pass
A.	Multi-level inheritance
B.	Multiple inheritance
C.	Hierarchical inheritance
D.	Single-level inheritance
Answer» B. Multiple inheritance

Discussion

91.	What type of inheritance is illustrated in the following piece of code? class A(): pass class B(): pass class C(A,B): pass
A.	Multi-level inheritance
B.	Multiple inheritance
C.	Hierarchical inheritance
D.	Single-level inheritance
Answer» C. Hierarchical inheritance

Discussion

92.	What does built-in function help do in context of classes?
A.	Determines the object name of any value
B.	Determines the class identifiers of any value
C.	Determines class description of any built-in type
D.	Determines class description of any user-defined built-in type
Answer» D. Determines class description of any user-defined built-in type

Discussion

93.	Which of the following is not a type of inheritance?
A.	Double-level
B.	Multi-level
C.	Single-level
D.	Multiple
Answer» B. Multi-level

Discussion

94.	What does built-in function type do in context of classes?
A.	Determines the object name of any value
B.	Determines the class name of any value
C.	Determines class description of any value
D.	Determines the file name of any value
Answer» C. Determines class description of any value

Discussion

95.	What is the output of the following piece of code? class A: def __init__(self, x= 1): self.x = x class der(A): def __init__(self,y = 2): super().__init__() self.y = y def main(): obj = der() print(obj.x, obj.y) main()
A.	Error, the syntax of the invoking method is wrong
B.	The program runs fine but nothing is printed
C.	1 0
D.	1 2
Answer» E.

Discussion

96.	What is the output of the following piece of code? class Test: def __init__(self): self.x = 0 class Derived_Test(Test): def __init__(self): Test.__init__(self) self.y = 1 def main(): b = Derived_Test() print(b.x,b.y) main()
A.	Error because class B inherits A but variable x isn’t inherited
B.	0 0
C.	0 1
D.	Error, the syntax of the invoking method is wrong
Answer» D. Error, the syntax of the invoking method is wrong

Discussion

97.	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?
A.	A.__init__(self)
B.	B.__init__(self)
C.	A.__init__(B)
D.	B.__init__(A)
Answer» B. B.__init__(self)

Discussion

98.	What is the output of the following piece of code? class A(): def disp(self): print("A disp()") class B(A): pass obj = B() obj.disp()
A.	Invalid syntax for inheritance
B.	Error because when object is created, argument must be passed
C.	Nothing is printed
D.	A disp()
Answer» E.

Discussion

99.	What is the output of the following piece of code? class Test: def __init__(self): self.x = 0 class Derived_Test(Test): def __init__(self): self.y = 1 def main(): b = Derived_Test() print(b.x,b.y) main()
A.	0 1
B.	0 0
C.	Error because class B inherits A but variable x isn’t inherited
D.	Error because when object is created, argument must be passed like Derived_Test(1)
Answer» D. Error because when object is created, argument must be passed like Derived_Test(1)

Discussion

100.	Which of the following statements is wrong about inheritance?
A.	Protected members of a class can be inherited
B.	The inheriting class is called a subclass
C.	Private members of a class can be inherited and accessed
D.	Inheritance is one of the features of OOP
Answer» D. Inheritance is one of the features of OOP

Discussion

Explore topic-wise MCQs in Technical Programming.

Which one of these is floor division

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

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

An exception is:

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

Identify the type of error in the codes shown below. Print(“Good Morning”) print(“Good night)

What is the output of the code shown below? def getMonth(m): if m<1 or m>12: raise ValueError("Invalid") print(m) getMonth(6)

The output of the code shown below is: int('65.43')

What is the output of the following code, if the time module has already been imported? 4 + '3'

What is the output of the code shown below? t[5]

What is the output of the code shown below? lst = [1, 2, 3] lst[3]

What happens if the file is not found in the code shown below? a=False while not a: try: f_n = input("Enter file name") i_f = open(f_n, 'r') except: print("Input file not found")

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

The error displayed in the code shown below is: import itertools l1=(1, 2, 3) l2=[4, 5, 6] l=itertools.chain(l1, l2) print(next(l1))

What is the output of the code shown? def f(x): for i in range(5): yield i g=f(8) print(list(g))

What is the output of the following code? def a(): try: f(x, 4) finally: print('after f') print('after f?') a()

What is the output of the code shown below? def f(x): yield x+1 print("test") yield x+2 g=f(10) print(next(g)) print(next(g))

What is the output of the code shown below? #generator def f(x): yield x+1 g=f(8) print(next(g))

What is the output of the code shown below? x=10 y=8 assert x>y, 'X too small'

What happens when ‘1’ == 1 is executed?

What is the output of the following? try: if '1' != 1: raise "someError" else: print("someError has not occurred") except "someError": print ("someError has occurred")

What is the output of the following code? def foo(): try: print(1) finally: print(2) foo()

What is the output of the following code? def foo(): try: return 1 finally: return 2 k = foo() print(k)

When is the finally block executed?

Can one block of except statements handle multiple exception?

Is the following code valid? try: # Do something except: # Do something finally: # Do something

When will the else part of try-except-else be executed?

How many except statements can a try-except block have?

Which of these is a private data field? def Demo: def __init__(self): __a = 1 self.__b = 1 self.__c__ = 1 __d__= 1

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

Which of the following is the most suitable definition for encapsulation?

Which of these is not a fundamental features of OOP?

What is the use of duck typing?

What is the biggest reason for the use of polymorphism?

Which of the following best describes polymorphism?

What is the output of the following piece of code? class A: def __init__(self): self._x = 5 class B(A): def display(self): print(self._x) def main(): obj = B() obj.display() main()

What is the output of the following piece of code when executed in the Python shell? >>> class A: pass >>> class B(A): pass >>> obj=B() >>> isinstance(obj,A)

Which of the following statements isn’t true?

What does single-level inheritance mean?

What type of inheritance is illustrated in the following piece of code? class A(): pass class B(A): pass class C(B): pass

What type of inheritance is illustrated in the following piece of code? class A(): pass class B(): pass class C(A,B): pass

What does built-in function help do in context of classes?

Which of the following is not a type of inheritance?

What does built-in function type do in context of classes?

What is the output of the following piece of code? class A: def __init__(self, x= 1): self.x = x class der(A): def __init__(self,y = 2): super().__init__() self.y = y def main(): obj = der() print(obj.x, obj.y) main()

What is the output of the following piece of code? class Test: def __init__(self): self.x = 0 class Derived_Test(Test): def __init__(self): Test.__init__(self) self.y = 1 def main(): b = Derived_Test() print(b.x,b.y) main()

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?

What is the output of the following piece of code? class A(): def disp(self): print("A disp()") class B(A): pass obj = B() obj.disp()

What is the output of the following piece of code? class Test: def __init__(self): self.x = 0 class Derived_Test(Test): def __init__(self): self.y = 1 def main(): b = Derived_Test() print(b.x,b.y) main()

Which of the following statements is wrong about inheritance?

Which of these is a private data field? def Demo: def init(self): a = 1 self.b = 1 self.c = 1 d= 1

Methods of a class that provide access to private members of the class are called as and

What is the output of the following piece of code? class A: def init(self): self._x = 5 class B(A): def display(self): print(self._x) def main(): obj = B() obj.display() main()

What is the output of the following piece of code? class A: def init(self, x= 1): self.x = x class der(A): def init(self,y = 2): super().init() self.y = y def main(): obj = der() print(obj.x, obj.y) main()

What is the output of the following piece of code? class Test: def init(self): self.x = 0 class Derived_Test(Test): def init(self): Test.init(self) self.y = 1 def main(): b = Derived_Test() print(b.x,b.y) main()

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?

What is the output of the following piece of code? class Test: def init(self): self.x = 0 class Derived_Test(Test): def init(self): self.y = 1 def main(): b = Derived_Test() print(b.x,b.y) main()