WGU D278
WGU D278 Practice Exam Study Questions and
Answers 2025
A car drove 200 miles using 10 gallons of fuel.Which operation should be used to
compute the miles per gallon, which is 20? -Correct Answer ✔Division
Which operator should be used to determine if a number is evenly divisible by 5? -
Correct Answer ✔%
A variable should hold the names of all past U.S. presidents.Which data type should the
variable be? -Correct Answer ✔String array
A variable should hold a person's height in meters.Which data type should the variable
be? -Correct Answer ✔Float
A program uses the number of seconds in a minute in various calculations.How should
the item that holds the number of seconds in a minute be declared? -Correct Answer
✔Constant integer secondsPerMinute
A program determines if a user's age is high enough to run for U.S. president. The
minimum age requirement is 35.How should the item that holds the minimum age be
declared? -Correct Answer ✔Constant integer minAge
Given integer x = 3 and integer y = 5.What is the value of the expression (x / 2.0) + y? -
Correct Answer ✔6.5
Given float x = 10.2 and float y = 1.0.What is the value of the expression x / y? -Correct
Answer ✔10.2
WGU D278
, WGU D278
What kind of operator is the == in the expression i == 20? -Correct Answer ✔Equality
What is the purpose of parentheses () in a programming expression? -Correct Answer
✔To group expressions
Given float x = 3.0.Which expression evaluates to 2.0? -Correct Answer ✔x / 2 + 0.5 /2 +
.25
Which expression represents all the values of x, when x is the age ranging from 18 to 24
years old? -Correct Answer ✔(x >= 18) and (x <= 24)
Which data type is used for items that are measured in length? -Correct Answer ✔Float
Which data type should be used to keep track of how many planes are in a hangar? -
Correct Answer ✔Integer
What does a programmer do first to use an existing programming library? -Correct
Answer ✔Include the library
What relationship is common among a programming library's functions? -Correct
Answer ✔Functions all relate to the same purpose.
What is an advantage of using a programming library? -Correct Answer ✔The code has
already been tested.
Which language is dynamically typed? -Correct Answer ✔Python
WGU D278
WGU D278 Practice Exam Study Questions and
Answers 2025
A car drove 200 miles using 10 gallons of fuel.Which operation should be used to
compute the miles per gallon, which is 20? -Correct Answer ✔Division
Which operator should be used to determine if a number is evenly divisible by 5? -
Correct Answer ✔%
A variable should hold the names of all past U.S. presidents.Which data type should the
variable be? -Correct Answer ✔String array
A variable should hold a person's height in meters.Which data type should the variable
be? -Correct Answer ✔Float
A program uses the number of seconds in a minute in various calculations.How should
the item that holds the number of seconds in a minute be declared? -Correct Answer
✔Constant integer secondsPerMinute
A program determines if a user's age is high enough to run for U.S. president. The
minimum age requirement is 35.How should the item that holds the minimum age be
declared? -Correct Answer ✔Constant integer minAge
Given integer x = 3 and integer y = 5.What is the value of the expression (x / 2.0) + y? -
Correct Answer ✔6.5
Given float x = 10.2 and float y = 1.0.What is the value of the expression x / y? -Correct
Answer ✔10.2
WGU D278
, WGU D278
What kind of operator is the == in the expression i == 20? -Correct Answer ✔Equality
What is the purpose of parentheses () in a programming expression? -Correct Answer
✔To group expressions
Given float x = 3.0.Which expression evaluates to 2.0? -Correct Answer ✔x / 2 + 0.5 /2 +
.25
Which expression represents all the values of x, when x is the age ranging from 18 to 24
years old? -Correct Answer ✔(x >= 18) and (x <= 24)
Which data type is used for items that are measured in length? -Correct Answer ✔Float
Which data type should be used to keep track of how many planes are in a hangar? -
Correct Answer ✔Integer
What does a programmer do first to use an existing programming library? -Correct
Answer ✔Include the library
What relationship is common among a programming library's functions? -Correct
Answer ✔Functions all relate to the same purpose.
What is an advantage of using a programming library? -Correct Answer ✔The code has
already been tested.
Which language is dynamically typed? -Correct Answer ✔Python
WGU D278
