Exam 5: Lists and Dictionaries

What list method should you use in order to remove and return the element at the end of the list named "books"?

You add a new key/value pair to a dictionary by using the subscript operator [].

You are designing a script that may be imported as a module in other scripts. What variable can you use to check whether the script has been imported as a module, or is running as the main script?

The main function usually expects no arguments and returns no value.

You are creating a Python script that will make use of user input contact names and their associated phone numbers. What would be ideal for storing and accessing these associated values?

What is the return value for a function that has no return statement defined?

The index of the first item in a list is 1.

What statement accurately describes what a mutator is in the Python language?

In computer science, what are two names that are used to describe data structures organized by association? (Choose two.)

What statement accurately describes the use of a parameter in Python?

Anytime you foresee using a list whose structure will not change, you can, and should, use a tuple instead.

If pop is used with just one argument and this key is absent from the dictionary, Python raises an error.

When creating a list of items whose structure will not change, what should you ideally use to contain the values?

What operator should you utilize if you wish to test for object identity between two objects?

What statement accurately describes the difference between a list and a tuple?

Lists of integers can be built using the range function.

What dictionary operation can you use to remove all the keys within the dictionary named contacts?

The == operator returns True if the variables are aliases for the same object. Unfortunately, == returns False if the contents of two different objects are the same.

What method should you utilize to add the elements of list2 onto the end of list1?

What statement regarding the use of lists is accurate?