Data Structures Quiz

What is a List?

• An unordered collection of immutable items

• A collection of distinct/unique items

• An ordered collection of mutable items

• A collection of key/value pairs

What is the main difference between a List and a Tuple?

• A Tuple is immutable while a List is mutable

• A List is enclosed by square brackets while a Tuple is enclosed by curly braces

• A Tuple is an ordered collection while a List is an unordered collection

• A List can contain key/value pairs while a Tuple cannot

What does the .append() function do in Python Lists?

• Adds an item to the end of the List

• Insert an item to the List based on index position

• Removes an item from the List

• Returns the number of items in the List

What does the .values() function do in Python Dictionaries?

• Returns the number of items in the Dictionary

• Prints out all the keys within the Dictionary

• Removes a key with its value from the Dictionary

• Prints out all the values within the Dictionary

Which one of these is correct about a set?

• x = (1, 2, 3, 4)

• x = {1, 2, 3, 4}

• x = [1, 2, 3, 4]

• x = {"a": 1, "b": 2, "c":3, "d": 4}

What is the purpose of the len() function in Python?

• Adds items to a List or Dictionary

• Deletes items from a List or Dictionary

• Returns the number of items in a List, Tuple, or Dictionary

• Sorts the items in a List or Dictionary

What is a Set in Python?

• A collection of key/value pairs

• An unordered collection of unique items

• A collection of items enclosed by round brackets ( )

• An ordered collection of mutable items

What does the .pop(key) function do in Python Dictionaries?

• Prints out all the keys within the Dictionary

• Prints out all the values within the Dictionary

• Removes the requested key with its value from the Dictionary

• Returns the number of items in the Dictionary

What is the purpose of the del statement in Python?

• Deletes items from a List based on index position

• Deletes items from a dictionary based on value

• Deletes items from a list based on element value

• Deletes any items from a tuple

How can you check if an item exists in a tuple in Python?

• Using the .add() method

• Using the 'in' keyword

• Using the .remove() method

• Using the .exist() method