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Exam 10: Dictionaries and Sets

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Question 21

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A(n) _______________ is an object that holds multiple unique items of data in an unordered manner.

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Question 22

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Each element in a(n) _______________ has two parts: a key and a value.

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Question 23

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A dictionary can include the same value several times, but cannot include the same key several times.

The built-in function _______________ returns the number of items in a set.

Sets are created using curly braces {}.

The _______________ method clears the contents of a dictionary.

What does the get method do if the specified key is not found in the dictionary?

What is the process used to convert an object to a stream of bytes that can be saved in a file?

Which function would you use to get the number of elements in a dictionary?

The union of two sets is a set that contains only the elements that appear in both sets.

The _______________ of two sets is a set that contains all the elements of both sets.

You would typically use a for loop to iterate over the elements in a set.

What method can be used to add a group of elements to a set?

The elements in a dictionary are not stored in a specific order. Therefore a dictionary is not a(n) _______________.

In order to avoid KeyError exceptions, you can check whether a key is in the dictionary using the _____ operator.