WGU C173 SCRIPTING AND PROGRAMMING – FOUNDATIONS ( END OF SECTION TEST PREP)
What is Programming? (correct answers)"You write your source code and then a compiler goes through
the code and creates a separate file that contains the machine code. This separate file is an executable
file because the computer can directly execute it. All of the code is converted at once and the new
compiled file is no longer editable.
Found in Lynda.com Lesson 1: Programming Basics, "Compiled and Interpreted Languages"
What is an interpreted programming language?: (correct answers)An interpreted language does the
conversion from source code to machine code on-the-fly. There is no separate machine code file. The
computer executes each line when it is needed. This means that all of the code is saved in a format that
is editable programming language.
Found in Lynda.com Lesson 1: Programming Basics, "Compiled and Interpreted Languages"
What is the main difference in compiled and interpreted code? (correct answers)The main difference is
when the code is converted to machine language. A compiled language converts all of the code at one
time, before the code is run by the machine, and saves this into a new file. That new file is now machine
code, and is not editable. An interpreted language still needs to convert to machine language in order
for the computer to understand it, but it does this at the time that the code is executed. The original
programming language is preserved, so it is editable.
What is an object? (correct answers)Something that has its own identity and characteristics, separate
from other objects.
Found in Lynda Lesson 1: Core Concepts, "What is an Object"
What three things describe an object in object-oriented programming languages? (correct
answers)identity, attributes, and behavior
Found in Lynda Lesson 1: Core Concepts, "What is an Object"
What is a class? (correct answers)A class describes what an object will be, but it isn't the object itself. A
class is a blueprint, a detailed description, a definition of an object.
Found in Lynda Lesson 1: Core Concepts, "What is an Class"
Why would we create a class? (correct answers)To create a blueprint upon which to build multiple
objects that share attributes and behaviors
Found in Lynda Lesson 1: Core Concepts, "What is an Class"
What is the difference in an object and a class? (correct answers)An object is something that has its own
identify and characteristics, separate from other objects. A class describes that object will be, but it isn't
the object itself. For example, a house is an object and the blueprints used to create it would be
considered the class.
What is instantiation? (correct answers)Creating instances of a class
Found in Lynda Lesson 1: Core Concepts, ""What is an Class""; Codecademy Lesson 20, 2/11, "Create an
Instance of a Class"
What is abstraction? (correct answers)Focus on the essential qualities of something rather than one
specific example. For example, if I say a table you have an idea of what I mean even though I didn't say if
it was wood/glass or big/small. This is the essential idea behind creating classes.
Found in Lynda Lesson 1: Core Concepts, "What is Abstraction"
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