Western Governors University (WGU) ICSC2100 C949 Data Structures and Algorithms I Practice Exam

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What method removes all keys from a dictionary?

clear()

The method that removes all keys from a dictionary is 'clear()'. When you invoke the 'clear()' method on a dictionary, it effectively empties the entire dictionary, removing all key-value pairs without the need to specify any keys. This is particularly useful when you want to reset a dictionary to its original empty state without needing to create a new instance or individually delete each item. In contrast, other choices do not perform this function; for instance, 'free()' is not a method associated with dictionaries in Python, 'keys()' returns a view of all the keys without modifying the dictionary, and 'remove()' is typically used for lists and does not apply to dictionary structures.

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free()

keys()

remove()

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