Scripting-and-Programming-Foundations Exam Dumps - WGU NDE Questions and Answers

 Dijkstra’s shortest path algorithm is designed to find the shortest path between nodes in a graph. This can be applied to various scenarios, such as routing problems, network optimization, and in this case, determining the most fuel-efficient flight plan. The algorithm works by iteratively selecting the unvisited vertex with the smallest tentative distance from the source, then visiting the neighbors of this vertex and updating their tentative distances if a shorter path is found. This process continues until the destination vertex is reached or all reachable vertices have been visited.

In the context of the given options, Dijkstra’s algorithm is best suited for option B, where the goal is to find the most fuel-efficient path (i.e., the shortest path) between multiple points (coordinates of five positions). The algorithm is not designed to solve problems like searching for an element in an array (option A), finding the longest common subsequence (option C), or searching for a name in a list (option D).

Comprehensive and Detailed Explanation From Exact Extract:

In Agile software development, the process is iterative and focuses on delivering working software incrementally. According to foundational programming principles and Agile methodologies (e.g., Certiport Scripting and Programming Foundations Study Guide, Agile Manifesto), the design phase involves creating detailed plans for the software, including identifying objects (e.g., classes in object-oriented programming) to be implemented.

Agile Phases Overview:

Analysis: Defines requirements and goals (e.g., user stories, project scope).

Design: Creates detailed plans, including system architecture, data models, and objects/classes to be written.

Implementation: Writes and integrates code for the designed components.

Testing: Verifies that the implemented code meets requirements.

Option A: "Design." This is correct. During the design phase in Agile, the team translates requirements into technical specifications, often producing a list of objects (e.g., classes, modules) to be coded. For example, in an object-oriented project, the design phase identifies classes like User, Order, or Product.

Option B: "Testing." This is incorrect. Testing verifies the implemented code, not the creation of a list of objects.

Option C: "Implementation." This is incorrect. Implementation involves writing the code for the objects identified during the design phase.

Option D: "Analysis." This is incorrect. Analysis focuses on gathering requirements and defining what the system should do, not specifying technical objects.

Certiport Scripting and Programming Foundations Study Guide (Section on Software Development Life Cycle: Agile).

Agile Manifesto: “Principles of Agile Development” (http://agilemanifesto.org/).

Sommerville, I., Software Engineering, 10th Edition (Chapter 4: Agile Software Development).

A language characterized by a series of method calls is typically referred to as a functional language. In functional programming, computation is treated as the evaluation of mathematical functions and avoids changing-state and mutable data. It is a declarative programming paradigm, which means programming is done with expressions or declarations instead of statements. In functional languages, functions are first-class citizens, meaning they can be passed as arguments to other functions, returned as values from other functions, and assigned to variables.

A while loop is used to repeatedly execute a block of code as long as a specified condition is true. In the context of the given options:

Option A could use a simple if-else statement to compare two numbers and print the larger one.

Option B is a classic example of a use case for a while loop. The loop can run until the correct password is entered or the maximum number of attempts is reached.

Option C could be accomplished with a single if statement to check if the number is a multiple of 10.

Option D can also be done with an if-else statement to check the properties of the number.

Therefore, the task that is best suited for a while loop is Option B, where the user is asked to enter a password repeatedly until a correct password is entered or a certain number of incorrect attempts have been made. This requires the program to loop through the password prompt and check the conditions after each input, which is what while loops are designed for.

Comprehensive and Detailed Explanation From Exact Extract:

An integer data type is used for whole numbers without fractional parts. According to foundational programming principles, values that represent counts or discrete quantities typically use integers, while values with decimal points or fractional components use floating-point types.

Option A: "The cost of a dinner including tax and tip." This is incorrect. Costs typically involve decimal values (e.g., $24.99), requiring a floating-point type (e.g., float or double) to handle cents.

Option B:: "An approximation of the number pi to five decimal places." This is incorrect. Pi approximated to five decimal places (e.g., 3.14159) is a decimal number, requiring a floating-point type, not an integer.

Option C: "The weights of every patient involved in a pharmaceutical trial." This is incorrect. Weights (e.g., 70.5 kg) typically include decimal points for precision, requiring a floating-point type.

Option D: "The number of students in a section." This is correct. The number of students is a whole number (e.g., 25), which is represented by an integer data type (e.g., int in C or Python).

Certiport Scripting and Programming Foundations Study Guide (Section on Data Types).

Python Documentation: “Built-in Types” (https://docs.python.org/3/library/stdtypes.html).

W3Schools: “C Data Types” (https://www.w3schools.com/c/c_data_types.php).

Comprehensive and Detailed Explanation From Exact Extract:

HTML (HyperText Markup Language) is a standard for structuring content on the web. According to foundational programming principles, HTML is a markup language, not a programming language, and does not involve typing (dynamic or static) or OOP.

Option A: "Dynamically typed." This is incorrect. HTML is not a programming language and does not involve variables or typing. Dynamic typing applies to languages like Python or JavaScript.

Option B: "Markup." This is correct. HTML is a markup language used to define the structure of web content using tags (e.g.,

,

).

Option C: "Statically typed." This is incorrect. HTML does not involve typing, as it is not a programming language. Static typing applies to languages like C or Java.

Option D: "Object-oriented." This is incorrect. HTML lacks OOP features like classes, inheritance, or polymorphism, as it is designed for content structuring, not programming.

Certiport Scripting and Programming Foundations Study Guide (Section on Markup Languages).

W3Schools: “HTML Introduction” (https://www.w3schools.com/html/html_intro.asp).

Mozilla Developer Network: “HTML Basics” (https://developer.mozilla.org/en-US/docs/Learn/Getting_started_with_the_web/HTML_basics).

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).

The pseudocode provided appears to be a loop that calculates the sum of numbers. Without seeing the exact pseudocode, I can deduce based on common programming patterns that if the loop is designed to add numbers from 1 to 5, the sum would be 1 + 2 + 3 + 4 + 5, which equals 15. This is a typical example of a series where the sum of the first n natural numbers is given by the formula

2n(n+1)​

, and in this case, with n being 5, the sum is

25(5+1)​=15

Comprehensive and Detailed Explanation From Exact Extract:

In Agile software development, the process is iterative, and writing code to create a version of the program occurs during the implementation phase. According to foundational programming principles and Agile methodologies (e.g., Certiport Scripting and Programming Foundations Study Guide, Agile Manifesto), implementation involves coding the software based on requirements and design.

Agile Phases Overview:

Analysis: Gathers and refines requirements (e.g., customer needs as user stories).

Design: Plans the technical solution (e.g., defining functions, classes, or architecture).

Implementation: Writes and integrates code to create a working version.

Testing: Verifies the code meets requirements.

Option A: "Implementation." This is correct. Starting to write the first version of the program involves coding, which is the core activity of the implementation phase. For example, the programmer might write functions or classes to meet customer requirements.

Option B: "Testing." This is incorrect. Testing occurs after coding to verify the program’s functionality, not during the writing of the first version.

Option C: "Design." This is incorrect. Design involves planning the program’s structure (e.g., specifying functions or objects), not writing the code.

Option D: "Analysis." This is incorrect. Analysis involves receiving and refining requirements, which the programmer has already done before starting to code.

Certiport Scripting and Programming Foundations Study Guide (Section on Agile Implementation).

Agile Manifesto: “Working Software” (http://agilemanifesto.org/).

Sommerville, I., Software Engineering, 10th Edition (Chapter 4: Agile Software Development).

Object-oriented programming (OOP) is characterized by the concept of encapsulating data and operations within objects. This characteristic is fundamental to OOP and distinguishes it from procedural programming, which is structured around functions rather than objects. In OOP, objects are instances of classes, which define the data (attributes) and the operations (methods) that can be performed on that data. This encapsulation of data and methods within objects allows for more modular, reusable, and maintainable code.

The characteristics of object-oriented programming languages are well-documented and include encapsulation, abstraction, inheritance, and polymorphism. These principles are foundational to OOP and are supported by languages like C++, Java, and Python12345.