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Exam 5: Lists and Dictionaries

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Question 21

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The index of the last item in a list is the length of the list.

A) True
B) False

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Question 22

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What happens if you attempt to pop a key from a dictionary and the key does not exist, and you specified no default return?

A) The pop will return a None value.
B) The pop will return a value of 0.
C) The pop will return a value of False.
D) An error will be raised.

E) B) and D)
F) B) and C)

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Question 23

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The list method ascending mutates a list by arranging its elements in ascending order.

What dictionary method can be utilized to access the entries in a dictionary variable with a name of parts?

An Identity function usually tests its argument for the presence or absence of some property.

In scripts that include the definitions of several cooperating functions, it is often useful to define a special function named init that serves as the entry point for the script.

If you use the range method with a single parameter of 50, what will be the range of integers included in the returned list?

Which of the following assigns a dictionary list of keys and values to the variable named persons?

In a dictionary, a -> separates a key and its value.

What are the two arguments expected by the get method for a dictionary object? (Choose two.)

What happens if you use the following statement to sort a list of numbers called numbers? numbers = numbers.sort()

When replacing an element in a list, the subscript is used to reference the target of the assignment statement, which is not the list but an element's position within it.

When a Python script is running as a standalone program, what will the __name__ variable be set to?

Each item in a list has a unique index that specifies its position.

In order to create a docstring for a defined function, where should the docstring be?

In a Python dictionary, an association is formed between what two components of the dictionary? (Choose two.)

A list is a sequence of data values called indexes.

The definition of the main function and the other function definitions can appear in no particular order in the script, as long as main is called at the very end of the script.

Although a list's elements are always ordered by position, it is possible to impose a natural ordering on them as well.

To prevent aliasing, a new object can be created and the contents of the original can be copied to it.