WGU D278
WGU D278 Exam Prep Study Guide
Questions and Answers 2025
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
Which language is not built on object-oriented design principles? -Correct Answer ✔C
A language substantially supports a programmer creating items like person, teacher, and
students. Each item has internal data and some operations.
Which characteristic describes that language? -Correct Answer ✔Object-oriented
A programmer wants a compiler to report an error if an integer variable is assigned with
a string.
Which type of language should the programmer use? -Correct Answer ✔Statically Typed
A language uses tags around text to indicate how that text should be formatted.
WGU D278
, WGU D278
Which characteristic describes a language having such tags? -Correct Answer ✔Markup
What is a characteristic of compiled language? -Correct Answer ✔Converts to machine
language before running
What is a characteristic of interpreted programs? -Correct Answer ✔They can be
modified at run time
Which characteristic specifically describes a markup language? -Correct Answer ✔Tags
surround text to describe desired formatting
Which characteristic specifically describes interpreted language? -Correct Answer ✔They
can run on any machine having the right interpreter
Which data type is used for items that are measured in length? -Correct Answer ✔Float
What is the purpose of parentheses () in a programming expression? -Correct Answer
✔To group expressions
Which data type should be used to keep track of how many planes are in a hanger? -
Correct Answer ✔Integer
What is a valid user-defined function name? -Correct Answer ✔Variable identifier
What is the return value of a function? -Correct Answer ✔Output of a function
WGU D278
WGU D278 Exam Prep Study Guide
Questions and Answers 2025
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
Which language is not built on object-oriented design principles? -Correct Answer ✔C
A language substantially supports a programmer creating items like person, teacher, and
students. Each item has internal data and some operations.
Which characteristic describes that language? -Correct Answer ✔Object-oriented
A programmer wants a compiler to report an error if an integer variable is assigned with
a string.
Which type of language should the programmer use? -Correct Answer ✔Statically Typed
A language uses tags around text to indicate how that text should be formatted.
WGU D278
, WGU D278
Which characteristic describes a language having such tags? -Correct Answer ✔Markup
What is a characteristic of compiled language? -Correct Answer ✔Converts to machine
language before running
What is a characteristic of interpreted programs? -Correct Answer ✔They can be
modified at run time
Which characteristic specifically describes a markup language? -Correct Answer ✔Tags
surround text to describe desired formatting
Which characteristic specifically describes interpreted language? -Correct Answer ✔They
can run on any machine having the right interpreter
Which data type is used for items that are measured in length? -Correct Answer ✔Float
What is the purpose of parentheses () in a programming expression? -Correct Answer
✔To group expressions
Which data type should be used to keep track of how many planes are in a hanger? -
Correct Answer ✔Integer
What is a valid user-defined function name? -Correct Answer ✔Variable identifier
What is the return value of a function? -Correct Answer ✔Output of a function
WGU D278
