PURDUE CNIT 155 FINAL EXAM
(PYTHON) QUESTIONS AND ANSWERS
2026 VERIFIED.
What is a List? - ANS A data structure that can store many values of under one name
Which is an example of how to create an empty list? - ANS Variable = []
Variable = list()
Which is an example of how to create a list with predefined values? - ANS colors = ["red,
"yellow", "blue"]
To create a list with predefined values, you have to.... - ANS Put a sequence of items in []
What does list1.append(elem) do? - ANS Adds a single element to the end of the list
What does list1.insert(index, elem) do? - ANS Inserts the element elem at the given index,
shifting elements to the right
What does list1.extend(list2) do? - ANS Add the elements in list2 to the end of the list.
T or F: The extend method is not only used with a list. - ANS False
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,T or F: Using + or += on a list is similar to using the extend method. - ANS True
How do you access the individual element in a list using an index? - ANS list1[index]
What are characteristics of Positive Indexes? - ANS 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? - ANS 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? - ANS Is a description
What does len do? - ANS Returns the number of items in the list
What does min do? - ANS Returns the minimum among the elements in the list
What does max do? - ANS Returns the maximum among the elements in the list
What does sum do? - ANS 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. -
ANS Shuffle
What do you type to import the shuffle function and use the shuffle function with a list? -
ANS from random import shuffle
shuffle(list1)
You can refer to elements of a list using the... - ANS Subscript syntax
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, T or F: The code below makes third have a value of 83.0
scores = [75.0, 68.5, 83.0]
third = scores[2] - ANS True
T or F: Negative indices count from the right end. - ANS True
What is the value of third after running the code below?
scores = [75.0, 68.5, 83.0]
third = scores[-1] - ANS 83.0
Which is an example of negative indices? - ANS scores = [75.0, 68.5, 83.0]
third = scores[-1]
Which is an example of positive indices? - ANS scores = [75.0, 68.5, 83.0]
third = scores[2]
Slicing gives a... - ANS List of elements
Subscripting gives a... - ANS Single element
Which is an example of slicing a list? - ANS scores = [68.5, 83.0]
exams = scores[1:3]
T or F: Each list is an object. - ANS True
@COPYRIGHT ALL RIGHTS RESERVED PAGE 3 OF 24
(PYTHON) QUESTIONS AND ANSWERS
2026 VERIFIED.
What is a List? - ANS A data structure that can store many values of under one name
Which is an example of how to create an empty list? - ANS Variable = []
Variable = list()
Which is an example of how to create a list with predefined values? - ANS colors = ["red,
"yellow", "blue"]
To create a list with predefined values, you have to.... - ANS Put a sequence of items in []
What does list1.append(elem) do? - ANS Adds a single element to the end of the list
What does list1.insert(index, elem) do? - ANS Inserts the element elem at the given index,
shifting elements to the right
What does list1.extend(list2) do? - ANS Add the elements in list2 to the end of the list.
T or F: The extend method is not only used with a list. - ANS False
@COPYRIGHT ALL RIGHTS RESERVED PAGE 1 OF 24
,T or F: Using + or += on a list is similar to using the extend method. - ANS True
How do you access the individual element in a list using an index? - ANS list1[index]
What are characteristics of Positive Indexes? - ANS 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? - ANS 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? - ANS Is a description
What does len do? - ANS Returns the number of items in the list
What does min do? - ANS Returns the minimum among the elements in the list
What does max do? - ANS Returns the maximum among the elements in the list
What does sum do? - ANS 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. -
ANS Shuffle
What do you type to import the shuffle function and use the shuffle function with a list? -
ANS from random import shuffle
shuffle(list1)
You can refer to elements of a list using the... - ANS Subscript syntax
@COPYRIGHT ALL RIGHTS RESERVED PAGE 2 OF 24
, T or F: The code below makes third have a value of 83.0
scores = [75.0, 68.5, 83.0]
third = scores[2] - ANS True
T or F: Negative indices count from the right end. - ANS True
What is the value of third after running the code below?
scores = [75.0, 68.5, 83.0]
third = scores[-1] - ANS 83.0
Which is an example of negative indices? - ANS scores = [75.0, 68.5, 83.0]
third = scores[-1]
Which is an example of positive indices? - ANS scores = [75.0, 68.5, 83.0]
third = scores[2]
Slicing gives a... - ANS List of elements
Subscripting gives a... - ANS Single element
Which is an example of slicing a list? - ANS scores = [68.5, 83.0]
exams = scores[1:3]
T or F: Each list is an object. - ANS True
@COPYRIGHT ALL RIGHTS RESERVED PAGE 3 OF 24
