Python Programming Week 8 Quiz Solution [Python Programming course on Prutor.ai by IIT kharagpur]

John Rakon September 13, 2020

Here you will get all the assignment and quiz solutions of Python Programming Course by prutor.ai. Prutor is an online smart tutoring platform which provides various MOOC courses for student and organised by by IIT Kharagpur. At the end of each course student gets a certificate for sucessfull completion of each course but throughout the course students have to pass all the weekly assignments and quizes.

[1] A class definition in python begins with the keyword –

(a): def
(b): class
(c): self
(d): None of these

Answer: (b) class

[2] Which of the following statements is best suited for the declaration x = Point() in python where Point is defined as a class?

(a): x contains an int value.
(b): x contains an object of the Point type
(c): x contains a reference to a Point object.
(d): None of these

Answer: (c) x contains a reference to a Point object.

[3] What will be the output of the following python code?

class Roll:
def __init__(self, id):
self.id = id
id = 231

val = Roll(321)
print (val.id).

(a): Error
(b): 231
(c): 321
(d): None of these

Answer: (c) 321

[4] Special methods need to be explicitly called during object creation in python.

(a): True
(b): False

Answer: (b) False

[5] What will be the output of following python code?

class X:
def __init__(self):
self.a = 10
self._b = 20
def getB(self):
return self._b

x = X()
x._b = 60
print(x.getB())

(a): 20
(b): 60
(c): Error
(d): Program runs but does not print anything

Answer: (b) 60

[6] A class can inherit attributes and methods from another class, this another class is then called –

(a): subclass
(b): superclass
(c): childclass
(d): heirclass

Answer: (b) superclass

[7] Consider a scenario where vehicle, bike, car and bus are the classes in a python script. Which of the following class is most likely to be implemented as the superclass –

(a): bike
(b): vehicle
(c): car
(d): bus

Answer: (b) vehicle

[8] In python, every class is inherited from an object class.

(a): True
(b): False

Answer: (a) True

[9] What will be the output of following python code –

class Person:

def getInfo(self):
return “Person’s getInfo is called”

def printPerson(self):
print(self.getInfo())

class Staff(Person):
def getInfo(self):
return “Staff’s getInfo is called”

def main():
Person().printPerson()
Staff().printPerson()
main()

(a): Person’s getInfo is called
Person’s getInfo is called
(b): Person’s getInfo is called
Staff’s getInfo is called
(c): Staff’s getInfo is called
Person’s getInfo is called
(d): Staff’s getInfo is called
Staff’s getInfo is called

Answer: (b)

Person’s getInfo is called
Staff’s getInfo is called

[10] What will be the output of following python code –

class A:
def __init__(self, i = 0, j = 0):
self.i = i
self.j = j

def __str__(self):
return “some string”

def __eq__(self, other):
return self.i * self.j == other.i * other.j

def main():
x = A(4, 3)
y = A(6, 2)
print(x == y)

main()

(a): True
(b): False

Answer: (a) True

[11] In python, the name of a private method in a class begins with –

(a): _ (underscore)
(b): _ (double underscores)
(c): private keyword
(d): None of these

Answer: (b) _ (double underscores)

[12] In python, select the correct alternative about pass keyword –

(a): pass is used when a statement is required syntactically but no command/code is required to execute
(b): pass is a null operation
(c): pass is useful in places where code will eventually go, but has not been written yet
(d): All of the above

Answer: (d) All of the above

[13] In python, does the is instance method return a value of type Boolean?

(a): True
(b): False

Answer: (a) True

[14] In object oriented programming, encapsulation refers to bundling of data attributes and methods operating on them.

(a): True
(b): False

Answer: (a) True

[15] Information hiding in object oriented programming enables users of a class to –

(a): Must rely only on the interface, but not rely on internals.
(b): Depend on what is implemented, but not how it is implemented.
(c): Both (a) and (b)
(d): None of these

Answer: (c)– Both (a) and (b)

That’s all for the Python programming Quiz – 8th Week Quiz Solution. if you have any questions, please comment down below, we will try to answer within the first 24 hours. I hope you liked this content. We will come to another week’s quiz. Thanks for reading.

Some More Answer

[1]

f = open(‘file.txt’)
print ( f.closed )
f.close()
print ( f.closed )

Answer:- False true

[2]

Which of the following function is used to read files in python:-
Read()
Readlines()
Readline()
All of the above

Answer:- All of the above

[3]

Which of the following is true :-
1. Read() returns a string and readlines() return line at a time

2. readlines()returns a list of lines and readline() returns one line at a time

3. Both a and b

4. None of the above

Answer:- Both a and b

[4]

Which of the following is true :-
1. file.closed() method is used to close a file.

2. file.close() method is used to check if a file is closed.

3. file.isClosed() is used to check if a file is closed or not.

4. None of the above

Answer:- file.closed() method is used to close a file.

[5]

Suppose a file named test.txt has content 1 2 3 4 5 6 7 in it.Now what will be the output of the following code :-
file = open(“test.txt”,’r’)
file.read(5)

Answer:- 1 2 3

If you have any quetions, please comment down below, we will try to answer with in first 24 hour. Hope you liked this content, We will come with another week’s quiz, Thanks for reading. Good Bye.