Python Data Structures

Assess your knowledge of lists,tuples,dictionaries,and sets.

1. Which Python data structure uses curly braces and stores key-value pairs?

List Tuple Dictionary Set

2. Select all immutable data structures in Python.

List Tuple String Set

3. Sets allow duplicate elements.

True False

4. What is the built-in function to get the number of elements in a list?

5. Which method is used to remove and return the last element of a list?

pop() remove() delete() discard()

6. Which of the following are valid ways to create an empty list?

[] list() () {}

7. What data structure is defined with square brackets `[]` and is mutable?

Tuple Set List String

8. Dictionaries in Python 3.7+ preserve the insertion order of keys.

True False

9. What data structure is used to store unique elements and is denoted by curly braces `{}`?

10. Which list methods modify the original list in-place (do not return a new list)?

append() extend() sorted() reverse()

11. Which operator checks if a key exists in a dictionary?

in exists has_key contains

12. A tuple can be converted to a list using the `list()` function.

True False

13. What method adds multiple elements to a set at once?

14. Which of the following are valid string methods in Python?

append() replace() split() pop()

15. What is the output of `len((1, 2, 3, (4, 5)))`?

4 5 2 Error

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