Understanding Python Dictionaries

What is another name for an associative array in computer science?

• List

• Map

• Queue

• Stack

In Python, what is the structure used to store key/value pairs?

• List

• Set

• Tuple

• Dictionary

Which of the following is NOT a valid data type for a dictionary key in Python?

• Tuple

• Integer

• String

• List

How do you add a new key/value pair to an existing dictionary using brackets?

• Use the 'append' method

• Use the 'insert' method

• Use the 'add' method

• Assign a value to a key inside brackets

What error is raised when trying to access a non-existent key in a dictionary?

• ValueError

• IndexError

• TypeError

• KeyError

Which method can be used to safely retrieve a value from a dictionary with a default if the key is missing?

• search

• get

• find

• lookup

What method can be used to iterate over both keys and values in a dictionary?

• keys

• values

• items

• pairs

Which method removes all items from a dictionary?

• delete

• clear

• remove

• erase

What is the result of using the 'pop' method on a dictionary?

• Removes a random item

• Removes all items

• Removes a single item by key

• Removes the last item

Which Python version introduced a more powerful print function affecting dictionary output?

• Python 4

• Python 3.5

• Python 3

• Python 2