Sets in Python

Question 1

What is the output of the following ?

sampleSet = {"Yellow", "Orange", "Black"}
sampleSet.add("Blue")
sampleSet.add("Orange")
print(sampleSet)

Accepted Answer

{‘Blue’, ‘Orange’, ‘Yellow’, ‘Black’}

Answer

{‘Blue’, ‘Orange’, ‘Yellow’, ‘Orange’, ‘Black’}

Question 2

The union() method returns a new set with all items from both sets by removing duplicates

Answer

true

Question 3

Select all the correct ways to copy two sets

Accepted Answer

set2 = set1.copy()

Accepted Answer

set2 = set(set1)

Accepted Answer

set2.update(set1)

Answer

set2 = set1

Question 4

What is the output of the following

sampleSet = {"Yellow", "Orange", "Black"}
sampleSet.discard("Blue")
print(sampleSet)

Accepted Answer

{‘Yellow’, ‘Orange’, ‘Black’}

Answer

KeyError: ‘Blue’

Question 5

The symmetric_difference() method returns a set that contains all items from both sets, but not the items that are present in both sets.

Answer

true

Question 6

What is the output of the following code

aSet = {1, 'PYnative', ['abc', 'xyz'], True}
print(aSet)

Accepted Answer

TypeError

Answer

{1, ‘PYnative’, [‘abc’, ‘xyz’]}

Answer

{1, ‘PYnative’, [‘abc’, ‘xyz’], True}

Question 7

Select which is true for Python set

Accepted Answer

Sets are unordered.

Accepted Answer

Set doesn’t allow duplicate

Accepted Answer

sets are written with curly brackets {}

Answer

set Allows duplicate

Answer

set is immutable

Answer

a set object does support indexing

Question 8

What is the output of the following set operation.

set1 = {"Yellow", "Orange", "Black"}
set2 = {"Orange", "Blue", "Pink"}

set1.difference_update(set2)
print(set1)

Accepted Answer

{‘Black’, ‘Yellow’}

Answer

{‘Yellow’, ‘Orange’, ‘Black’, ‘Blue’, ‘Pink’}

Question 9

What is the output of the following code

sampleSet = {"Yellow", "Orange", "Black"}
print(sampleSet[1])

Accepted Answer

Syntax Error

Answer

Yellow

Answer

Orange

Question 10

What is the output of the following union operation

set1 = {10, 20, 30, 40}
set2 = {50, 20, "10", 60}

set3 = set1.union(set2)
print(set3)

Accepted Answer

{40, 10, ’10’, 50, 20, 60, 30}

Answer

{40, 10, 50, 20, 60, 30}

Answer

{40, ’10’, 50, 20, 60, 30}

Answer

SynatxError: Different types cannot be used with sets

Question 11

What is the output of the following set operation

set1 = {"Yellow", "Orange", "Black"}
set2 = {"Orange", "Blue", "Pink"}

set3 = set2.difference(set1)
print(set3)

Accepted Answer

{‘Pink’, ‘Blue’}

Answer

{‘Yellow’, ”Black’, ‘Pink’, ‘Blue’}

Answer

{‘Yellow’, ”Black’}

Question 12

Select all the correct options to remove “Orange” from the set.

sampleSet = {"Yellow", "Orange", "Black"}

Accepted Answer

sampleSet.discard(“Orange”)

Accepted Answer

sampleSet.discard('Orange')

Answer

sampleSet.pop(“Orange”)

Answer

del sampleSet [“Orange”]

Question 13

What is the output of the following

set1 = {10, 20, 30, 40, 50}
set2 = {60, 70, 10, 30, 40, 80, 20, 50}

print(set1.issubset(set2))
print(set2.issuperset(set1))

Accepted Answer

True
True

Answer

False
False

Answer

False
True

Answer

True
False

Question 14

What is the output of the following set operation

sampleSet = {"Yellow", "Orange", "Black"}
sampleSet.update(["Blue", "Green", "Red"])
print(sampleSet)

Accepted Answer

{‘Yellow’, ‘Orange’, ‘Red’, ‘Black’, ‘Green’, ‘Blue’}

Answer

{‘Yellow’, ‘Orange’, ‘Black’, [“Blue”, “Green”, “Red”]}

Answer

TypeError: update() doesn’t allow list as a argument.

Question 15

What is the output of the following code

aSet = {1, 'PYnative', ('abc', 'xyz'), True}
print(aSet)

Accepted Answer

{‘PYnative’, 1, (‘abc’, ‘xyz’)}

Answer

TypeError

Answer

{‘PYnative’, 1, (‘abc’, ‘xyz’), True}

Sets in Python

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