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

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Which method removes a key from a dictionary?

delete()

pop()

The method used to remove a key from a dictionary in Python is indeed the pop() method. When invoking pop() on a dictionary, you can specify the key you want to remove. This method not only removes the key-value pair from the dictionary but also returns the value associated with the removed key. If the specified key does not exist, pop() raises a KeyError, unless a default value is provided as a second argument.

Other methods listed do not pertain to dictionaries in the same way. The delete() method is not a standard method for Python dictionaries. The remove() method is commonly used with lists to remove elements, and discard() is associated with sets to remove elements but does not apply to dictionary operations. Understanding the appropriate methods to manipulate data structures is crucial for effectively managing and utilizing collections in programming.

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remove()

discard()

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