Python Programming Mock Test 6

10%

Question 1 of 10

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

def foo(i, x=[]):
    x.append(x.append(i))
    return x
for i in range(3):
    y = foo(i)
print(y)

[[[0]], [[[0]], [1]], [[[0]], [[[0]], [1]], [2]]]

[0, None, 1, None, 2, None]

[[[0]], [[[0]], [1]], [[[0]], [[[0]], [1]], [2]]]

[[0], [[0], 1], [[0], [[0], 1], 2]]

Question 1 of 10

Question 2 of 10

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

>>> import collections
>>> b=dict()
>>> b=collections.defaultdict(lambda: 7)
>>> b[4]

An exception is thrown

Question 2 of 10

Question 3 of 10

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

>>> a={i: 'A' + str(i) for i in range(5)}
>>> a

{0: 'A0', 1: 'A1', 2: 'A2', 3: 'A3', 4: 'A4'}

{0: '0', 1: '1', 2: '2', 3: '3', 4: '4'}

{0: 'A', 1: 'A', 2: 'A', 3: 'A', 4: 'A'}

An exception is thrown

Question 3 of 10

Question 4 of 10

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

def foo(x):
    x[0] = ['def']
    x[1] = ['abc']
    return id(x)
q = ['abc', 'def']
print(id(q) == foo(q))

Error

True

False

None

Question 4 of 10

Question 5 of 10

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

x=12
def f1(a,b=x):
    print(a,b)
x=15
f1(4)

4 15

Error

4 12

12 4

Question 5 of 10

Question 6 of 10

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

>>> a={}
>>> a.fromkeys([1,2,3],"check")

Syntax error

{1:None,2:None,3:None}

“check”

{1:”check”,2:”check”,3:”check”}

Question 6 of 10

Question 7 of 10

7. The function complex(‘2-3j’) is valid but the function complex(‘2 - 3j’) is invalid.

True

False

Question 7 of 10

Question 8 of 10

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

def f1(a,b=[]):
    b.append(a)
    return b
print(f1(2,[3,4]))

[3,4,2]

[3,2,4]

Error

[2,3,4]

Question 8 of 10

Question 9 of 10

9. Which of the following functions does not necessarily accept only iterables as arguments?

chr()

max()

all()

enumerate()

Question 9 of 10

Question 10 of 10

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

x=100
def f1():
    global x
    x=90
def f2():
    global x
    x=80
print(x)

100

Error

Question 10 of 10