WGU D278 Exam Prep questions with
correct answers
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.
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
correct answers
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.
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
