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Exam WGU Scripting-and-Programming-Foundations Question & Valid Scripting-and-Programming-Foundations Guide Files

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WGU Scripting and Programming Foundations Exam Sample Questions (Q46-Q51):

NEW QUESTION # 46
A program calculates the average miles per gallon given miles traveled and gas consumed. How should the item that holds the miles per gallon be declared?

A. Constant float milesPerGallon
B. Variable float milesTraveled
C. Constant float milesTraveled
D. Variable float milesPerGallon

Answer: D

Explanation:
Comprehensive and Detailed Explanation From Exact Extract:
Miles per gallon (MPG) is calculated as miles traveled divided by gallons consumed, typically resulting in a decimal value (e.g., 25.5 MPG). According to foundational programming principles, MPG should be a variable (as it is computed and may change) and a floating-point type to handle decimals.
* Option A: "Variable float milesTraveled." This is incorrect. While miles traveled may be a float variable, the question asks for the declaration of MPG, not miles traveled.
* Option B: "Constant float milesPerGallon." This is incorrect. MPG is calculated and may vary with different inputs, so it should be a variable, not a constant (const).
* Option C: "Constant float milesTraveled." This is incorrect. The question focuses on MPG, not miles traveled, and constants are inappropriate for computed values.
* Option D: "Variable float milesPerGallon." This is correct. MPG requires a float to store decimal values (e.g., 22.7) and a variable to allow updates based on new calculations. For example, in C: float milesPerGallon = miles / gallons;.
Certiport Scripting and Programming Foundations Study Guide (Section on Variables and Data Types).
Python Documentation: "Floating Point Arithmetic" (https://docs.python.org/3/tutorial/floatingpoint.html).
W3Schools: "C Data Types" (https://www.w3schools.com/c/c_data_types.php).

NEW QUESTION # 47
Which type of language requires variables to be declared ahead of time and prohibits their types from changing while the program runs?

A. Scripted (interpreted)
B. Compiled
C. Procedural
D. Static

Answer: D

Explanation:
The type of language that requires variables to be declared ahead of time and prohibits their types from changing while the program runs is known as a statically typed language. In statically typed languages, the type of a variable is determined at compile-time and cannot be changed during runtime. This means that the compiler must know the exact data types of all variables used in the program, and these types must remain consistent throughout the execution of the program. Statically typed languages require developers to declare the type of each variable before using it, which can help catch type errors during the compilation process, potentially preventing runtime errors and bugs.
References:1
https://www.remotely.works/blog/understanding-the-differences-static-vs-dynamic-typing-in-programming-lang

NEW QUESTION # 48
What is a feature of CM as a programming language

A. The program usually runs slower than an interpreted language.
B. The code must be compiled into machine code in the form of an executable file before execution.
C. The code does not require being translated into machine code but can be run by a separate program called a compiler.
D. The code runs directly one statement at a time by another program called a compiler

Answer: B

Explanation:
The C(M) programming language is designed to translate mathematical constructions into efficient C programs. It is a declarative functional language with strong type checking and supports high-level functional programming. The C(M) compiler translates the C(M) program into a readable C program, which then needs to be compiled into machine code in the form of an executable file before it can be executed1. This process is typical of compiled languages, where the source code is transformed into machine code, which can be directly executed by the computer's CPU. In contrast, interpreted languages are typically run by an interpreter, executing one statement at a time, which generally results in slower execution compared to compiled languages.

NEW QUESTION # 49
Which phase of an Agile approach would create a function that calculates shipping costs based on an item's weight and delivery zip code?

A. Implementation
B. Analysis
C. Design
D. Testing

Answer: A

Explanation:
Comprehensive and Detailed Explanation From Exact Extract:
In Agile software development, the process is iterative, with phases including analysis, design, implementation, and testing. According to foundational programming principles and Agile methodologies (e.
g., Certiport Scripting and Programming Foundations Study Guide, Agile Manifesto), creating a function (writing code) occurs during the implementation phase.
* Agile Phases Overview:
* Analysis: Gathers requirements (e.g., user stories like "calculate shipping costs based on weight and zip code").
* Design: Plans the technical solution (e.g., specifying the function's signature, inputs, and outputs).
* Implementation: Writes and integrates the code (e.g., coding the function).
* Testing: Verifies the code meets requirements.
* Option A: "Testing." This is incorrect. Testing verifies the function's correctness, not its creation.
* Option B: "Analysis." This is incorrect. Analysis defines the requirement for the function (e.g., what it should do), not the coding.
* Option C: "Implementation." This is correct. In Agile, writing the function to calculate shipping costs (e.
g., calculateShipping(weight, zipCode)) happens during implementation, where code is developed based on the design.
* Option D: "Design." This is incorrect. Design specifies the function's structure (e.g., parameters, return type), but the actual coding occurs in implementation.
Certiport Scripting and Programming Foundations Study Guide (Section on Agile Development Phases).
Agile
Manifesto: "Working Software" (http://agilemanifesto.org/).
Sommerville, I., Software Engineering, 10th Edition (Chapter 4: Agile Software Development).

NEW QUESTION # 50
A software developer creates a list of all objects and functions that will be used in a board game application and then begins to write the code for each object.

A. Analysis and implementation
B. Design and testing
C. Design and implementation
D. Analysis and design

Answer: C

Explanation:
The process described involves two main phases: first, the developer is designing the application by creating a list of all objects and functions (the design phase), and then they are writing the code for each object (the implementation phase). This aligns with option C, Design and Implementation. Analysis would involve understanding the requirements or problems the software will address, which is not mentioned in the scenario.
Testing is a separate phase that typically occurs after implementation to ensure the code works as intended.

NEW QUESTION # 51
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