WGU D278 Exam Prep Questions and Answers Already Passed

WGU D278 Exam Prep Questions and Answers Already Passed What does a programmer do first to use an existing programming library? Include the library What relationship is common among a programming library's functions? Functions all relate to the same purpose. What is an advantage of using a programming library? The code has already been tested. Which language is dynamically typed? Python Which language is not built on object-oriented design principles? 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? 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? Statically Typed A language uses tags around text to indicate how that text should be formatted. Which characteristic describes a language having such tags? Markup What is a characteristic of compiled language? Converts to machine language before running What is a characteristic of interpreted programs? They can be modified at run time Which characteristic specifically describes a markup language? Tags surround text to describe desired formatting Which characteristic specifically describes interpreted language? They can run on any machine having the right interpreter Which data type is used for items that are measured in length? Float What is the purpose of parentheses () in a programming expression? To group expressions Which data type should be used to keep track of how many planes are in a hanger? Integer What is a valid user-defined function name? Variable identifier What is the return value of a function? Output of a function When should a programmer develop an algorithm to solve a problem? Before writing a program to solve the problem. Which phase of a waterfall approach would create a sequence diagram that specifies the required order of events between completed program components? Testing Which phase of an agile approach would define a hypothesis to find a problem in a program? Testing Which phase of an agile approach would create an executable program? Implementation Which phase of an agile approach would create a list of components needed to build an online auction site? Design Which phase of a waterfall approach defines a program's goals? Analysis Hierarchical Debugging Dividing the statements into regions and inserts one debug output statements after each region What is a coding library? a set of pre-written functions that carry out common tasks, that programmers can use to improve productivity. Define Library Functions Functions that relate to the same purpose (i.e., teacher, student, grades) What is a characteristic of a Markup Language? Allows a developer to describe a document's content, formatting