Python Sets MCQs: Exam-Centric Practice for Set Operations

61

What will be the output of the following Python code, if s1= {1, 2, 3}?

s1.issubset(s1)

A) True B) Error C) No output D) False

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Answer & Solution

Answer: Option A

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62

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

{a**2 for a in range(4)}

A) {1, 4, 9, 16} B) {0, 1, 4, 9, 16} C) Error D) {0, 1, 4, 9}

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Answer & Solution

Answer: Option D

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63

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

z=set('abc$de')
'a' in z

A) True B) False C) No output D) Error

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Answer & Solution

Answer: Option A

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64

The difference between the functions discard and remove is that:

A) Discard removes the last element of the set whereas remove removes the first element of the set B) Discard throws an error if the specified element is not present in the set whereas remove does not throw an error in case of absence of the specified element C) Remove removes the last element of the set whereas discard removes the first element of the set D) Remove throws an error if the specified element is not present in the set whereas discard does not throw an error in case of absence of the specified element

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Answer & Solution

Answer: Option D

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65

What will be the output of the following Python code?

s1={3, 4}
s2={1, 2}
s3=set()
i=0
j=0
for i in s1:
    for j in s2:
        s3.add((i,j))
        i+=1
        j+=1
print(s3)

A) {(3, 4), (1, 2)} B) Error C) {(4, 2), (3, 1), (4, 1), (5, 2)} D) {(3, 1), (4, 2)}

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Answer & Solution

Answer: Option C

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66

Which of these about a frozenset is not true?

A) Mutable data type B) Allows duplicate values C) Data type with unordered values D) Immutable data type

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Answer & Solution

Answer: Option A

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67

What will be the output of the following Python code?

>>> a={1,2,3}
>>> {x*2 for x in a|{4,5}}

A) {2,4,6} B) Error, set comprehensions aren't allowed C) {8, 2, 10, 4, 6} D) {8,10}

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Answer & Solution

Answer: Option C

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68

What is the purpose of the difference() method for sets?

A) Returns a new set with elements from the first set that are not in the second set B) Returns the union of two sets C) Returns the common elements of two sets D) Returns the symmetric difference of two sets

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Answer & Solution

Answer: Option A

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69

What will be the output of the following Python code?

>>> a={5,6,7,8}
>>> b={7,8,10,11}
>>> a^b

A) {5,6,7,8,10,11} B) {7,8} C) Error as unsupported operand type of set data type D) {5,6,10,11}

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Answer & Solution

Answer: Option D

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70

The output of the following code is: class<'set'>.

type({})

A) True B) False

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Answer & Solution

Answer: Option B

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