Free PCAP Data Structure Questions and Answers

Question 1

Which data structure is used to store a sequence of items that are ordered and changeable in Python?

Accepted Answer

List

Answer

Tuple

Answer

Set

Answer

Dictionary

Question 2

What is the correct syntax to create a tuple in Python?

Accepted Answer

tuple = (1, 2, 3)

Answer

tuple = [1, 2, 3]

Answer

tuple = {1, 2, 3}

Answer

tuple = <1, 2, 3>

Question 3

Which method would you use to add an item to the end of a list in Python?

Accepted Answer

append()

Answer

add()

Answer

insert()

Answer

extend()

Question 4

How do you access the value associated with a specific key in a dictionary?

Accepted Answer

dict[key]

Answer

dict. key

Answer

dict. get(key)

Answer

dict{key}

Question 5

Which data structure does not allow duplicate elements?

Accepted Answer

Set

Answer

Dictionary

Answer

List

Answer

Tuple

Question 6

What will be the output of the following code?br
my_dict = {""name"": ""John"", ""age"": 30}br
print(my_dict.get(""address"", ""Not found""))

Accepted Answer

Not found

Answer

address

Answer

None

Answer

Error

Question 7

Which of the following is true about tuples?

Accepted Answer

Both B and C

Answer

They are mutable

Answer

They are immutable

Answer

They can have duplicate elements

Question 8

How can you remove the last item from a list?

Accepted Answer

list.pop()

Answer

list.drop()

Answer

list.remove()

Answer

list.delete()

Question 9

What will be the result of the following code?br
my_set = {1, 2, 3}br
my_set.add(2)br
print(my_set)

Accepted Answer

{1, 2, 3}

Answer

{1, 2, 3, 2}

Answer

{1, 3}

Answer

{2, 3}

Question 10

Which method would you use to combine two dictionaries in Python 3.9 or later?

Accepted Answer

dict1 | dict2

Answer

dict1.merge(dict2)

Answer

dict1.update(dict2)

Answer

dict1 + dict2