CNIT 155 FINAL PURDUE COMPREHENSIVE
STUDY GUIDE 2026 VERIFIED ANSWERS
◉ Which is an example of how to create an empty list? Answer:
Variable = []
Variable = list()
◉ Which is an example of how to create a list with predefined
values? Answer: colors = ["red, "yellow", "blue"]
◉ To create a list with predefined values, you have to.... Answer: Put
a sequence of items in []
◉ What does list1.append(elem) do? Answer: Adds a single element
to the end of the list
◉ What does list1.insert(index, elem) do? Answer: Inserts the
element elem at the given index, shifting elements to the right
◉ What does list1.extend(list2) do? Answer: Add the elements in
list2 to the end of the list.
,◉ T or F: The extend method is not only used with a list. Answer:
False
◉ T or F: Using + or += on a list is similar to using the extend
method. Answer: True
◉ How do you access the individual element in a list using an index?
Answer: list1[index]
◉ What are characteristics of Positive Indexes? Answer: First
element in the list has index 0, second element has index 1, and n'th
element is n-1
◉ What are characteristics of Negative Indexes? Answer: Identify
positions relative to the end of the list, index -1 identifies the last
element, and -2 identifies the next to last element, etc.
◉ What does Function do? Answer: Is a description
◉ What does len do? Answer: Returns the number of items in the list
◉ What does min do? Answer: Returns the minimum among the
elements in the list
,◉ What does max do? Answer: Returns the maximum among the
elements in the list
◉ What does sum do? Answer: Returns the sum of all the elements
in the list. (applies to list of numerical values only)
◉ Given a list, you may use ________ to randomize the order of the
elements in a list. Answer: Shuffle
◉ What do you type to import the shuffle function and use the
shuffle function with a list? Answer: from random import shuffle
shuffle(list1)
◉ You can refer to elements of a list using the... Answer: Subscript
syntax
◉ T or F: The code below makes third have a value of 83.0
scores = [75.0, 68.5, 83.0]
third = scores[2] Answer: True
◉ T or F: Negative indices count from the right end. Answer: True
, ◉ What is the value of third after running the code below?
scores = [75.0, 68.5, 83.0]
third = scores[-1] Answer: 83.0
◉ Which is an example of negative indices? Answer: scores = [75.0,
68.5, 83.0]
third = scores[-1]
◉ Which is an example of positive indices? Answer: scores = [75.0,
68.5, 83.0]
third = scores[2]
◉ Slicing gives a... Answer: List of elements
◉ Subscripting gives a... Answer: Single element
◉ Which is an example of slicing a list? Answer: scores = [68.5, 83.0]
exams = scores[1:3]
◉ T or F: Each list is an object. Answer: True
STUDY GUIDE 2026 VERIFIED ANSWERS
◉ Which is an example of how to create an empty list? Answer:
Variable = []
Variable = list()
◉ Which is an example of how to create a list with predefined
values? Answer: colors = ["red, "yellow", "blue"]
◉ To create a list with predefined values, you have to.... Answer: Put
a sequence of items in []
◉ What does list1.append(elem) do? Answer: Adds a single element
to the end of the list
◉ What does list1.insert(index, elem) do? Answer: Inserts the
element elem at the given index, shifting elements to the right
◉ What does list1.extend(list2) do? Answer: Add the elements in
list2 to the end of the list.
,◉ T or F: The extend method is not only used with a list. Answer:
False
◉ T or F: Using + or += on a list is similar to using the extend
method. Answer: True
◉ How do you access the individual element in a list using an index?
Answer: list1[index]
◉ What are characteristics of Positive Indexes? Answer: First
element in the list has index 0, second element has index 1, and n'th
element is n-1
◉ What are characteristics of Negative Indexes? Answer: Identify
positions relative to the end of the list, index -1 identifies the last
element, and -2 identifies the next to last element, etc.
◉ What does Function do? Answer: Is a description
◉ What does len do? Answer: Returns the number of items in the list
◉ What does min do? Answer: Returns the minimum among the
elements in the list
,◉ What does max do? Answer: Returns the maximum among the
elements in the list
◉ What does sum do? Answer: Returns the sum of all the elements
in the list. (applies to list of numerical values only)
◉ Given a list, you may use ________ to randomize the order of the
elements in a list. Answer: Shuffle
◉ What do you type to import the shuffle function and use the
shuffle function with a list? Answer: from random import shuffle
shuffle(list1)
◉ You can refer to elements of a list using the... Answer: Subscript
syntax
◉ T or F: The code below makes third have a value of 83.0
scores = [75.0, 68.5, 83.0]
third = scores[2] Answer: True
◉ T or F: Negative indices count from the right end. Answer: True
, ◉ What is the value of third after running the code below?
scores = [75.0, 68.5, 83.0]
third = scores[-1] Answer: 83.0
◉ Which is an example of negative indices? Answer: scores = [75.0,
68.5, 83.0]
third = scores[-1]
◉ Which is an example of positive indices? Answer: scores = [75.0,
68.5, 83.0]
third = scores[2]
◉ Slicing gives a... Answer: List of elements
◉ Subscripting gives a... Answer: Single element
◉ Which is an example of slicing a list? Answer: scores = [68.5, 83.0]
exams = scores[1:3]
◉ T or F: Each list is an object. Answer: True
