python quiz 4

Q.1. What is the output of this code?

a,b=1,0

a=a^b

b=a^b

a=a^b

print(a)

• 0

• 1

• 2

• error

what is output of following code −

class Count:

def __init__(self, count=0):

self.__count=count

a=Count(2)

b=Count(2)

print(id(a)==id(b), end = '' '')

c= ''hello''

d= ''hello''

print(id(c)==id(d))

• A - True False

• B - False True

• C - False False

• D - True True

What will be the output of the following code snippet?class Sales:

def __init__(self, id):

self.id = id

id = 100

val = Sales(123)

print (val.id)

• A. SyntaxError, this program will not run

• B. 100

• C. 123

• D. None of the above

What will be the output of the following code snippet?class Person:

def __init__(self, id):

self.id = id

sam = Person(100)

sam.__dict__['age'] = 49

print (sam.age + len(sam.__dict__))

• 1

• 2

• 50

• 51

Which of the following can be used to invoke the __init__ method in B from A, where A is a subclass of B?

• A. super().__init__()

• B. super().__init__(self)

• C. B.__init__()

• D. B.__init__(self)

What will be the output of the following code snippet?class A:

def __init__(self):

self.calcI(30)

print("i from A is", self.i)

def calcI(self, i):

self.i = 2 * i;

class B(A):

def __init__(self):

super().__init__()

def calcI(self, i):

self.i = 3 * i;

b = B()

• A. The __init__ method of only class B gets invoked.

• B. The __init__ method of class A gets invoked and it displays “i from A is 0”.

• C. The __init__ method of class A gets invoked and it displays “i from A is 60”.

• D. The __init__ method of class A gets invoked and it displays “i from A is 90”.

Which of the following is not a complex number?

• a) k = 2 + 3j

• b) k = complex(2, 3)

• c) k = 2 + 3l

• d) k = 2 + 3J

What will be the output of the following Python code?

>>>t = (1, 2, 4, 3, 8, 9)

>>>[t[i] for i in range(0, len(t), 2)]

• a) [2, 3, 9]

• b) [1, 2, 4, 3, 8, 9]

• c) [1, 4, 8]

• d) (1, 4, 8)

. What will be the output of the following Python code?

a = [5,5,6,7,7,7]

b = set(a)

def test(lst):

if lst in b:

return 1

else:

return 0

for i in filter(test, a):

print(i,end=" ")

• a) 5 5 6

• b) 5 6 7

• c) 5 5 6 7 7 7

• d) 5 6 7 7 7

39. If a={5,6,7,8}, which of the following statements is false?

• a) print(len(a))

• b) print(min(a))

• c) a.remove(5)

• d) a[2]=45