CSC Exam 7-9 with Complete Solutions
Invalid indexes do not cause slicing expressions to raise an exception. - ANSWER-True
Arrays, which are allowed by most other programming languages, have more
capabilities than Python list structures. - ANSWER-False
Lists are dynamic data structures such that items may be added to them or removed
from them. - ANSWER-True
A list cannot be passed as an argument to a function. - ANSWER-False
The remove method removes all occurrences of an item from a list. - ANSWER-False
The sort method rearranges the elements of a list so they are in ascending or
descending order. - ANSWER-False
The index of the first element in a list is 1, the index of the second element is 2, and so
forth. - ANSWER-False
In slicing, if the end index specifies a position beyond the end of the list, Python will use
the length of the list instead. - ANSWER-True
In order to create graphs using the matplotlib package, you need to import the pyplot
module. - ANSWER-True
To add a descriptive label to the X and Y axes of a graph when using the matplotlib
package, you need to import the labels module. - ANSWER-False
What are the data items in a list called? - ANSWER-elements
When working with multiple sets of data, one would typically use a(n) - ANSWER-
nested list
The primary difference between a tuple and a list is that - ANSWER-once a tuple is
created, it cannot be changed
What is an advantage of using a tuple rather than a list? - ANSWER-Processing a tuple
is faster than processing a list.
Which list will be referenced by the variable number after the following code is
executed?
, number = range(0, 9, 2) - ANSWER-[0, 2, 4, 6, 8]
Which of the following would you use if an element is to be removed from a specific
index? - ANSWER-a del statement
the index -1 identifies the last element in a list - ANSWER-true
to calculate the average of the numeric values in a list, the first step is to get the total of
values in the list - ANSWER-true
What is the first negative index in a list? - ANSWER--1
Which method can be used to place an item at a specific index in a list? - ANSWER-
inset()
Which method or operator can be used to concatenate lists? - ANSWER-+
Which method can be used to convert a list to a tuple? - ANSWER-tuple
Which method can be used to convert a tuple to a list? - ANSWER-list()
What will be the value of the variable list after the following code executes?
list = [1, 2]
list = list * 3 - ANSWER-[1, 2, 1, 2, 1, 2]
What will be the value of the variable list after the following code executes?
list = [1, 2, 3, 4]
list[3] = 10 - ANSWER-[1, 2, 3, 10]
What will be the value of the variable list2 after the following code executes?
list1 = [1, 2, 3]
list2 = [ ]
for element in list1:
list2.append(element)
list1 = [4, 5, 6] - ANSWER-[1, 2, 3]
In order to create a graph in Python, you need to include - ANSWER-import
matplotlib.pyplot
What will be the output after the following code is executed?
import matplotlib.pyplot as plt
def main():
x_crd = [0, 1 , 2, 3, 4, 5]
y_crd = [2, 4, 5, 2]
plt.plot(x_crd, y_crd)
Invalid indexes do not cause slicing expressions to raise an exception. - ANSWER-True
Arrays, which are allowed by most other programming languages, have more
capabilities than Python list structures. - ANSWER-False
Lists are dynamic data structures such that items may be added to them or removed
from them. - ANSWER-True
A list cannot be passed as an argument to a function. - ANSWER-False
The remove method removes all occurrences of an item from a list. - ANSWER-False
The sort method rearranges the elements of a list so they are in ascending or
descending order. - ANSWER-False
The index of the first element in a list is 1, the index of the second element is 2, and so
forth. - ANSWER-False
In slicing, if the end index specifies a position beyond the end of the list, Python will use
the length of the list instead. - ANSWER-True
In order to create graphs using the matplotlib package, you need to import the pyplot
module. - ANSWER-True
To add a descriptive label to the X and Y axes of a graph when using the matplotlib
package, you need to import the labels module. - ANSWER-False
What are the data items in a list called? - ANSWER-elements
When working with multiple sets of data, one would typically use a(n) - ANSWER-
nested list
The primary difference between a tuple and a list is that - ANSWER-once a tuple is
created, it cannot be changed
What is an advantage of using a tuple rather than a list? - ANSWER-Processing a tuple
is faster than processing a list.
Which list will be referenced by the variable number after the following code is
executed?
, number = range(0, 9, 2) - ANSWER-[0, 2, 4, 6, 8]
Which of the following would you use if an element is to be removed from a specific
index? - ANSWER-a del statement
the index -1 identifies the last element in a list - ANSWER-true
to calculate the average of the numeric values in a list, the first step is to get the total of
values in the list - ANSWER-true
What is the first negative index in a list? - ANSWER--1
Which method can be used to place an item at a specific index in a list? - ANSWER-
inset()
Which method or operator can be used to concatenate lists? - ANSWER-+
Which method can be used to convert a list to a tuple? - ANSWER-tuple
Which method can be used to convert a tuple to a list? - ANSWER-list()
What will be the value of the variable list after the following code executes?
list = [1, 2]
list = list * 3 - ANSWER-[1, 2, 1, 2, 1, 2]
What will be the value of the variable list after the following code executes?
list = [1, 2, 3, 4]
list[3] = 10 - ANSWER-[1, 2, 3, 10]
What will be the value of the variable list2 after the following code executes?
list1 = [1, 2, 3]
list2 = [ ]
for element in list1:
list2.append(element)
list1 = [4, 5, 6] - ANSWER-[1, 2, 3]
In order to create a graph in Python, you need to include - ANSWER-import
matplotlib.pyplot
What will be the output after the following code is executed?
import matplotlib.pyplot as plt
def main():
x_crd = [0, 1 , 2, 3, 4, 5]
y_crd = [2, 4, 5, 2]
plt.plot(x_crd, y_crd)
