19FL-IT280-01 - Object Oriented Programming Quiz 5

• Question 1

  4 out of 4 points

  	The main function usually expects no arguments and returns no value.
  	Correct Answer:  True

• Question 2

  4 out of 4 points

  	What happens if you attempt to pop a key from a dictionary and the key does not exist, and you specified no default return?
  	Correct Answer: b.  An error will be raised.

• Question 3

  4 out of 4 points

  	A list is a sequence of data values called indexes.
  	Correct Answer:  False

• Question 4

  4 out of 4 points

  	What statement accurately describes the use of a parameter in Python?
  	Correct Answer: a.  A parameter is the name used in the function definition for an argument that is passed to the function when it is called.

• Question 5

  0 out of 4 points

  	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?
  	Correct Answer: c.  __name__

• Question 6

  4 out of 4 points

  	What operator should you utilize if you wish to test for object identity between two objects?
  	Correct Answer: d.  is

• Question 7

  4 out of 4 points

  	What happens if you use the following statement to sort a list of numbers called numbers? numbers = numbers.sort()
  	Correct Answer: b.  numbers is a value of None

• Question 8

  4 out of 4 points

  	When declaring a tuple, you enclose the tuple's elements in what two characters?
  	Correct Answer: b.  ()

• Question 9

  4 out of 4 points

  	A Python dictionary is written as a sequence of key/value pairs separated by commas. These pairs are sometimes called indexes.
  	Correct Answer:  False

• Question 10

  4 out of 4 points

  	What statement correctly defines what a median is?
  	Correct Answer: c.  A median is the value that is less than half the numbers in a set and greater than the other half.

• Question 11

  4 out of 4 points

  	In order to create a docstring for a defined function, where should the docstring be?
  	Correct Answer: a.  The docstring should be the next indented line after the def statement.

• Question 12

  4 out of 4 points

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

• Question 13

  4 out of 4 points

  	In a Python dictionary, an association is formed between what two components of the dictionary? (Choose two.)
  	Correct Answers: c.  values d.  keys

• Question 14

  4 out of 4 points

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

• Question 15

  4 out of 4 points

  	The index of the first item in a list is 1.
  	Correct Answer:  False

• Question 16

  4 out of 4 points

  	If you use the range method with a single parameter of 50, what will be the range of integers included in the returned list?
  	Correct Answer: c.  0 through 49

• Question 17

  4 out of 4 points

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

• Question 18

  0 out of 4 points

  	What dictionary method can be utilized to access the entries in a dictionary variable with a name of parts?
  	Correct Answer: d.  parts.list()

• Question 19

  4 out of 4 points

  	When a Python script is running as a standalone program, what will the __name__ variable be set to?
  	Correct Answer: a.  The variable will be set to "__main__".

• Question 20

  4 out of 4 points

  	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.
  	Correct Answer:  False

• Question 21

  4 out of 4 points

  	In computer science, what are two names that are used to describe data structures organized by association? (Choose two.)
  	Correct Answers: c.  association lists d.  tables

• Question 22

  4 out of 4 points

  	What list method should you use in order to remove and return the element at the end of the list named "books"?
  	Correct Answer: d.  books.pop()

• Question 23

  4 out of 4 points

  	Lists of integers can be built using the range function.
  	Correct Answer:  True

• Question 24

  4 out of 4 points

  	Which of the following assigns a dictionary list of keys and values to the variable named persons?
  	Correct Answer: b.  persons = {"Sam":"CEO", "Julie":"President"}

• Question 25

  4 out of 4 points

  	What dictionary operation can you use to remove all the keys within the dictionary named contacts?
  	Correct Answer: c.  contacts.clear()

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