Python Set

Question 1

What is a set in python?

A collection of ordered elements.

A collection of key-value pairs.

A collection of unique elements.

A collection of elements with duplicates.

Question 2

Which of the following is a valid way to create an empty set?

s=set()

s={}

s=()

All of the above.

Question 3

What is the output of following code snippet?

s=set()
print(len(s))

Error

None

Question 4

How do you add an element to a set s?

s.append(x)

s.add(x)

s.insert(x)

s.update(x)

Question 5

Which of the following is true about sets in python?

Sets are ordered collections.

Sets allow duplicate elements.

Sets are mutable.

Sets are iterable.

Question 6

What happens if you try to add a duplicate element to a set?

The set becomes empty.

The duplicate element is ignored.

An error is raised.

The original element is replaced.

Question 7

How do you remove an element x from a set s?

s.remove(x)

s.delete(x)

s.discard(x)

s.pop(x)

Question 8

Which method is used to clear all elements from a set s?

s.clear( )

s.empty( )

s.remove_all( )

s.delete_all( )

Question 9

What is the result of following code snippet?

set1 & set2

Union of set1 and set2.

Intersection of set1 and set2.

Difference of set1 and set2.

Symmetric difference of set1 and set2.

Question 10

What is the purpose of union() in sets?

To find the common elements between two sets.

To combine two sets without duplicates.

To remove elements from a set.

To find the difference between two sets.

Question 11

How do you check if a set set1 is a subset of another set set2?

set1.issuperset(set2)

set1.issubset(set2)

set1.subset(set2)

set1.includes(set2)

Question 12

What is the output of following code snippet?

length = len(set([1,2,3,4,5] ))
print(length)

Error

None

Question 13

Which of the following is a set comprehension in python?

{x for x in range(10)}

[x for x in range(10)]

(x for x in range(10))

None of the above.

Question 14

How can you find the difference between two sets set1 and set2?

set1-set2

set1|set2

set1&set2

set1^set2

Question 15

What is the output of following code snippet?

s=set('hello')
print(s)

{h, e, l, l, o,}

{hello}

{h, e, l, o}

{h, e, l, l, l, o}

Question 16

Which of the following methods can be used to remove and return an arbitrary element from a set?

pop()

remove()

discard()

clear()

Question 17

What is the output of following code snippet?

s=set('hello')|set('world')
print(s)

{hello, world}

{'e', 'r', 'h', 'l', 'o', 'w', 'd'}

{h, e, l, o} d)

{w, r, o, l, d}

Question 18

Which operator is used for symmetric difference between two sets?

Question 19

How do you check if a specific element x is in set s?

x in s

s.contains(x)

s.has(x)

s.find(x)

Question 20

Which of the following statements is true about frozensets in python?

Frozensets are mutable.

Frozensets are hashable.

Frozensets allow duplicate elements.

Frozensets have a add() method.

Question 21

How do you create a frozenset in python?

f=frozenset()

f=set()

f={}

f=set([])

Question 22

What is the output of following code snippet?

s=frozenset(hello)
print(s)

{h, e, l, l, o}

{hello}

{h, e, l, o}

{h, e, l, l, l, o}

Question 23

Can you add elements to a frozenset after its created?

Yes

Question 24

Which of the following methods can be used to perform a union operation on two sets?

union()

intersection()

difference()

symmetric_difference()

Question 25

What is the output of following code snippet?

s=set(apple)-set(pineapple)
print(s)

set()

{pine}

{p, l, e}

{apple}

Question 26

How do you find the maximum element in a set s?

max(s)

s.maximum()

s.max()

s.largest()

Question 27

What is the output of set following code snippet?

s=set(abc) & set(bcd)
print(s)

{abc}

{b, c}

{bc}

{a, b, c, d}

Question 28

How do you remove and return an arbitrary element from a set s while raising an error if the set is empty?

s.discard()

s.pop()

s.remove()

s.get()

Question 29

Which of the following is a valid set in python?

{1, 2, [3, 4]}

{1, 2, (3, 4)}

{{1, 2}, {3, 4}}

{{1, 2}, [3, 4]}

Question 30

What is the output of following code snippet?

s=set([1, 2, 3])
print(s)

{1, 2, 3}

{[1, 2, 3]}

Error

None

Question 31

Which of the following methods can be used to check if two sets have no elements in common?

isdisjoint()

issubset()

issuperset()

intersection()

Question 32

How do you find the sum of all elements in a set s?

sum(s)

s.sum()

s.reduce()

s.total()

Question 33

Which operator is used to check if one set is a superset of another set?

Question 34

What is the output of following code snippet?

s=set(hello)^set(world)
print(s)

{hello, world}

{w, d, r, e, h}

{h, e, l, o}

{w, r, o, l, d}

Question 35

How do you find the difference between two sets set1 and set2 using the difference() method?

set1.difference(set2)

set1-set2

set1|set2

set1&set2

Question 36

Which method is used to remove a specific element x from a set s without raising an error if the element is not present?

s.remove(x)

s.delete(x)

s.discard(x)

s.pop(x)

Question 37

What is the output of following code snippet?

s=set(abc)-set(bcd)
print(s)

{a}

{b,c}

{bc}

{a, b, c, d}

Question 38

How do you find the maximum element in a set s?

max(s)

s.maximum()

s.max()

s.largest()

Question 39

Which of the following is a valid frozenset in python?

frozenset{1, 2, [3, 4]}

frozenset{1, 2, (3, 4)}

frozenset{{1, 2}, {3, 4}}

frozenset{{1, 2}, [3, 4]}

Question 40

What is the output of following code snippet?

s=frozenset(1, 2, 3)
print(s)

{1, 2, 3}

{[1, 2, 3]}

Error

None

Question 41

How do you check if a specific element x is in frozenset f?

x in f

f.contains(x)

f.has(x)

f.find(x)

Question 42

Which of the following methods can be used to check if two frozensets have no elements in common?

isdisjoint()

issubset()

issuperset()

intersection()

Question 43

How do you find the sum of all elements in a frozenset f?

sum(f)

f.sum()

f.reduce()

f.total()

Question 44

Which operator is used to check if one frozenset is a superset of another frozenset?

Question 45

What is the output of following code snippet?

f =frozenset(hello)^frozenset(world)
print(s)

{hello, world}

frozenset({'w', 'd', 'r', 'e', 'h'})

{h, e, l, o}

{w, r, o, l, d}

Question 46

How do you create a set having 1, 2 and 3 elements?

s=set([1,2,3])

s={1,2,3}

s=set((1,2,3))

All of the above.

Question 47

What is the output of len(set()) when s is an empty set?

Error

None

Question 48

How do you add an element to a set s?

s.append(x)

s.add(x)

s.insert(x)

s.update(x)

Question 49

What is the result of following code snippet?

s={1,2,3}^{2,3,4}
print(s)

{1,2,3}

{1,4}

{2,3,4}

{1}

Question 50

What is the result of following code snippet?

nums=set([1,1,2,3,3,3,4,4]) print(len(nums))

Error, invalid syntax for formation of set.

Name

Phone

manish