MCQ Exam Test

Q1

What method is used to find the elements that are present in either of the sets, but not in both sets?

A symmetric_difference()
B exclusive()
C difference()
D union()

Q2

What will be the output of the following Python code? >>> a={5,6,7,8} >>> b={7,5,6,8} >>> a==b

A True
B False

Q3

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

Q4

Input order is preserved in sets.

A True
B False

Q5

In Python, how can you check if a set is a subset of another set?

A issubset()
B subsetof()
C sub()
D checksubset()

Q6

What will be the output of the following Python code? >>> a={5,4} >>> b={1,2,4,5} >>> a<b

A {1,2}
B True
C False
D Invalid operation

Q7

What will be the output of the following Python code? >>> a={1,2,3} >>> b=a.copy() >>> b.add(4) >>> a

A {1,2,3}
B Error, invalid syntax for add
C {1,2,3,4}
D Error, copying of sets isn't allowed

Q8

What will be the output of the following Python code? s=set() type(s)

A <'set'>
B <class 'set'>
C set
D class set

Q9

Write a list comprehension for number and its cube for: l=[1, 2, 3, 4, 5, 6, 7, 8, 9]

A [x**3 for x in l]
B [x^3 for x in l]
C [x**3 in l]
D [x^3 in l]

Q10

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

Q11

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

Q12

What is the syntax of the following Python code? >>> a=frozenset(set([5,6,7])) >>> a

A {5,6,7}
B frozenset({5,6,7})
C Error, not possible to convert set into frozenset
D Syntax error

Q13

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}

Q14

What is the output of the following code: set1 = {1, 2} set2 = {1, 2, 3, 4} print(set1.issubset(set2))

A TRUE
B FALSE
C Error
D None

Q15

What will be the output of the following Python function? {x for x in 'abc'} {x*3 for x in 'abc'}

A {abc} aaa bbb ccc
B abc abc abc abc
C {‘a’, ‘b’, ‘c’} {‘aaa’, ‘bbb’, ‘ccc’}
D {‘a’, ‘b’, ‘c’} abc abc abc

Q16

Is the following Python code valid? a={3,4,{7,5}} print(a[2][0])

A Yes, 7 is printed
B Error, elements of a set can't be printed
C Error, subsets aren't allowed
D Yes, {7,5} is printed

Q17

What is the output of the following code: set1 = {1, 2, 3} set2 = {2, 3, 4} print(set1.difference(set2))

A {1}
B {2, 3}
C {1, 2, 3, 4}
D {4}

Q18

What will be the output of the following code: my_set = {1, 2, 3} new_set = my_set.copy() print(new_set)

A {1, 2, 3}
B {1, 2, 3, 1, 2, 3}
C {1, 1, 2, 2, 3, 3}
D {2, 1, 3}

Q19

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

Q20

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

A Creates a shallow copy of the set
B Creates a deep copy of the set
C Creates a new set with elements from the original set
D Creates a reversed copy of the set

Q21

What will be the output of the following Python code? s1={1, 2, 3} s2={4, 5, 6} s1.isdisjoint(s2) s2.isdisjoint(s1)

A True False
B False True
C True True
D False False

Q22

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)}

Q23

If we have two sets, s1 and s2, and we want to check if all the elements of s1 are present in s2 or not, we can use the function:

A s2.issubset(s1)
B s2.issuperset(s1)
C s1.issuperset(s2)
D s1.isset(s2)

Q24

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

Q25

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}

python-programing - Part 36

What method is used to find the elements that are present in either of the sets, but not in both sets?

What will be the output of the following Python code? >>> a={5,6,7,8} >>> b={7,5,6,8} >>> a==b

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

Input order is preserved in sets.

In Python, how can you check if a set is a subset of another set?

What will be the output of the following Python code? >>> a={5,4} >>> b={1,2,4,5} >>> a<b

What will be the output of the following Python code? >>> a={1,2,3} >>> b=a.copy() >>> b.add(4) >>> a

What will be the output of the following Python code? s=set() type(s)

Write a list comprehension for number and its cube for: l=[1, 2, 3, 4, 5, 6, 7, 8, 9]

Which of these about a frozenset is not true?

What will be the output of the following Python code snippet? z=set('abc$de') 'a' in z

What is the syntax of the following Python code? >>> a=frozenset(set([5,6,7])) >>> a

What will be the output of the following Python code? >>> a={1,2,3} >>> {x*2 for x in a|{4,5}}

What is the output of the following code: set1 = {1, 2} set2 = {1, 2, 3, 4} print(set1.issubset(set2))

What will be the output of the following Python function? {x for x in 'abc'} {x*3 for x in 'abc'}

Is the following Python code valid? a={3,4,{7,5}} print(a[2][0])

What is the output of the following code: set1 = {1, 2, 3} set2 = {2, 3, 4} print(set1.difference(set2))

What will be the output of the following code: my_set = {1, 2, 3} new_set = my_set.copy() print(new_set)

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

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

What will be the output of the following Python code? s1={1, 2, 3} s2={4, 5, 6} s1.isdisjoint(s2) s2.isdisjoint(s1)

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)

If we have two sets, s1 and s2, and we want to check if all the elements of s1 are present in s2 or not, we can use the function:

The difference between the functions discard and remove is that:

What will be the output of the following Python code snippet? {a**2 for a in range(4)}

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