1|Page
WGU D684 OBJECTIVE ASSESSMENT FINAL LATEST 2026
ACTUAL EXAM TEST BANK| D684 INTRODUCTION TO
COMPUTER SCIENCE OA FINAL WITH 650 REAL EXAM
QUESTIONS AND CORRECT VERIFIED ANSWERS/ ALREADY
GRADED A+ (MOST RECENT!!)
Which type of variable represents a whole number in computer
programming?
String
Array
Integer
Float ......ANSWER......Integer
2
What describes a named storage location that can hold values that can
change?
Variable
Constant
Identifier
Operand ......ANSWER......Variable
What is one standard rule for a variable name?
The name should have an appropriate meaning.
,2|Page
The name must start with a lowercase letter.
The name must start with the type designation.
The name must use hyphens between words. ......ANSWER......The name
should have an appropriate meaning.
Which coding construct allows a choice between performing an action
and skipping it?
Assignment
Input/output
Selection
Iteration ......ANSWER......Selection
What is the value of the expression a + (b / c) * d - e if a = 19, b = 6, c =
2, d = 20, and e = 14?
65
132
226
426 ......ANSWER......65
What is a list?
A varying-length, ordered collection of homogeneous items that allows
for easy access, insertion, and removal
,3|Page
A group of related attributes stored as individual fields under a single
name and treated as a single concept
A fixed-length collection of homogeneous items that can each be
accessed by its position
A group in which individual elements are accessed from the same end
that is called the top ......ANSWER......A varying-length, ordered
collection of homogeneous items that allows for easy access, insertion,
and removal
How are items added to and removed from a stack?
All items can be added to or removed from any location.
All items can be accessed or changed but not easily inserted or
removed.
The first item to be added becomes the first item removed.
The item removed is the one that has been in the shortest time.
......ANSWER......The item removed is the one that has been in the
shortest time.
The collection of customers for a small business is stored in such a way
that a customer can be easily accessed, deleted, or added. What is the
data structure called for in this programming situation?
Queue
Record
, 4|Page
Stack
List ......ANSWER......List
What describes a reference parameter?
Stops the content of the argument from changing anywhere in the
program
Passes a copy of the content in an argument to the function
Allows the user to type in the content of an argument at runtime
Passes the address, rather than the content, of the argument to the
function ......ANSWER......Passes the address, rather than the content, of
the argument to the function
The code shows a subprogram and a call to that subprogram.
my_function(num_a)
num_c = process(num_a)
store(num_c)num_b = my_function(num_d)
Which variable name represents an argument?
num_a
num_b
num_c
num_d ......ANSWER......num_d
WGU D684 OBJECTIVE ASSESSMENT FINAL LATEST 2026
ACTUAL EXAM TEST BANK| D684 INTRODUCTION TO
COMPUTER SCIENCE OA FINAL WITH 650 REAL EXAM
QUESTIONS AND CORRECT VERIFIED ANSWERS/ ALREADY
GRADED A+ (MOST RECENT!!)
Which type of variable represents a whole number in computer
programming?
String
Array
Integer
Float ......ANSWER......Integer
2
What describes a named storage location that can hold values that can
change?
Variable
Constant
Identifier
Operand ......ANSWER......Variable
What is one standard rule for a variable name?
The name should have an appropriate meaning.
,2|Page
The name must start with a lowercase letter.
The name must start with the type designation.
The name must use hyphens between words. ......ANSWER......The name
should have an appropriate meaning.
Which coding construct allows a choice between performing an action
and skipping it?
Assignment
Input/output
Selection
Iteration ......ANSWER......Selection
What is the value of the expression a + (b / c) * d - e if a = 19, b = 6, c =
2, d = 20, and e = 14?
65
132
226
426 ......ANSWER......65
What is a list?
A varying-length, ordered collection of homogeneous items that allows
for easy access, insertion, and removal
,3|Page
A group of related attributes stored as individual fields under a single
name and treated as a single concept
A fixed-length collection of homogeneous items that can each be
accessed by its position
A group in which individual elements are accessed from the same end
that is called the top ......ANSWER......A varying-length, ordered
collection of homogeneous items that allows for easy access, insertion,
and removal
How are items added to and removed from a stack?
All items can be added to or removed from any location.
All items can be accessed or changed but not easily inserted or
removed.
The first item to be added becomes the first item removed.
The item removed is the one that has been in the shortest time.
......ANSWER......The item removed is the one that has been in the
shortest time.
The collection of customers for a small business is stored in such a way
that a customer can be easily accessed, deleted, or added. What is the
data structure called for in this programming situation?
Queue
Record
, 4|Page
Stack
List ......ANSWER......List
What describes a reference parameter?
Stops the content of the argument from changing anywhere in the
program
Passes a copy of the content in an argument to the function
Allows the user to type in the content of an argument at runtime
Passes the address, rather than the content, of the argument to the
function ......ANSWER......Passes the address, rather than the content, of
the argument to the function
The code shows a subprogram and a call to that subprogram.
my_function(num_a)
num_c = process(num_a)
store(num_c)num_b = my_function(num_d)
Which variable name represents an argument?
num_a
num_b
num_c
num_d ......ANSWER......num_d
