Western Governors University (WGU) ICSC2211 D684 Introduction to Computer Science Practice Test

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What is the key distinction between a "list" and a "tuple" in Python?

Lists can contain mixed data types, tuples cannot

Lists are mutable, tuples are immutable

The key distinction between a "list" and a "tuple" in Python is that lists are mutable, meaning that their contents can be changed after they have been created, while tuples are immutable, meaning that once they are created, their contents cannot be altered. This immutability makes tuples generally more efficient in terms of memory usage and can also enhance their performance when used as keys in dictionaries.

Because of their mutability, lists allow for operations such as adding, removing, or altering elements, which can be necessary in many programming situations. On the other hand, the immutable nature of tuples can make them a better choice when you want to ensure that the data remains constant throughout the lifecycle of a program.

This distinction is fundamental when deciding which data type to use, depending on whether you need the ability to modify your collection or require the persistence that tuples provide.

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Lists are always larger than tuples

Lists can have duplicate values, tuples cannot

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