Python - Chapter 4 Practice Quiz

What is the definition of a string?

• A string is a sequence of characters, typically used to represent text in programming and computer science.

• A string is a sequence of bits used exclusively for memory address representation.

• A string is a numeric value representing integer operations.

• A string is a compilation of data in a structured file format.

Which of the following is a string literal?

• 123

• 'Hello'

• [1, 2, 3]

• (1, 2, 3)

How are elements accessed in a tuple?

• By their index value using square brackets (e.g., tuple[index])

• Using keys like in dictionaries

• Through a dedicated get() method

• Via property accessors

True or False: Lists are immutable.

• True

• False

What function is used to add an element to the end of a list?

• append()

• add()

• insert()

• push()

Which method is used to find the index of a value in a list?

• .index()

• .find()

• .searchIndex()

• .position()

What is the use case of tuples?

• To store multiple items in an immutable sequence.

• To perform string operations.

• To calculate numerical values.

• To modify a list of items.

How are named tuples created?

• By using the namedtuple factory function from the collections module

• By using a standard tuple with named indices accessed via keys

• By subclassing tuple and manually defining attribute names

• By constructing a tuple and assigning names through a separate metadata structure

True or False: Named tuples are mutable.

• True

• False

In Python, which of the following best describes a set?

• It is a sequence of characters.

• It is an unordered collection of unique elements that is mutable.

• It is a list that can contain duplicate items.

• It is a mapping of keys to values.