Scripting-and-Programming-Foundations WGU Scripting and Programming Foundations Exam Question and Answers

Comprehensive and Detailed Explanation From Exact Extract:

Describing objects (e.g., classes) and functions for a file compression program involves planning the technical structure and coding it. According to foundational programming principles, this occurs in the design phase (specifying objects and functions) and the implementation phase (writing the code).

Waterfall Phases Analysis:

Analysis: Defines requirements (e.g., “compress files and split them”).

Design: Specifies objects (e.g., FileCompressor class) and functions (e.g., compressFile(), splitFile()) to meet requirements.

Implementation: Codes the described objects and functions.

Testing: Verifies the program works as intended.

Option A: "Analysis and implementation." This is incorrect. Analysis defines high-level requirements, not specific objects or functions, which are detailed in design.

Option B: "Design and implementation." This is correct. Design involves describing the objects and functions (e.g., class diagrams, function signatures), and implementation involves coding them.

Option C: "Implementation and testing." This is incorrect. Testing verifies the coded objects and functions, not their description.

Option D: "Design and testing." This is incorrect. Testing occurs after implementation, not when describing objects and functions.

Certiport Scripting and Programming Foundations Study Guide (Section on Waterfall Methodology).

Sommerville, I., Software Engineering, 10th Edition (Chapter 2: Waterfall Design and Implementation).

Pressman, R.S., Software Engineering: A Practitioner’s Approach, 8th Edition (Waterfall Phases).

 C is a programming language that primarily follows the procedural programming paradigm1. This paradigm is a subset of imperative programming and emphasizes on procedure in terms of the underlying machine model1. It involves writing a sequence of instructions to tell the computer what to do step by step, and it relies on the concept of procedure calls, where procedures, also known as routines, subroutines, or functions, are a set of instructions that perform a specific task1.

The procedural paradigm in C uses static typing, where the type of a variable is known at compile time1. This means that the type of a variable is declared and does not change over time, which is in contrast to dynamic typing, where the type can change at runtime. C’s type system requires that each variable and function is explicitly declared with a type and it does not support dynamic typing as seen in languages like Python or JavaScript1.

Comprehensive and Detailed Explanation From Exact Extract:

A loop variable update statement changes the value of the loop variable to progress the loop toward termination. In a while loop, this typically occurs within the loop body. According to foundational programming principles, the update statement modifies the loop control variable (here, h).

Code Analysis:

integer h = 7: Initializes h (not an update).

while h < 30: Loop condition (not an update).

Put h to output: Outputs h (not an update).

h = h + 2: Updates h by adding 2, progressing the loop.

Option A: "h < 30." Incorrect. This is the loop condition, not an update.

Option B: "h = h + 2." Correct. This statement updates the loop variable h, incrementing it by 2 each iteration.

Option C: "Put h to output." Incorrect. This is an output statement, not an update.

Option D: "integer h = 7." Incorrect. This is the initialization, not an update.

Certiport Scripting and Programming Foundations Study Guide (Section on Loops and Variables).

Python Documentation: “While Statements” (https://docs.python.org/3/reference/compound_stmts.html#while).

W3Schools: “C While Loop” (https://www.w3schools.com/c/c_while_loop.php).

The output of calling Greeting() twice depends on the implementation of the Greeting() function. Since the question does not provide the actual code for Greeting(), I’ll provide a general explanation.

If the Greeting() function simply prints “Hello!” without any additional characters or spaces, then calling it twice would result in the output: “Hello!Hello!” (Option B).

If the Greeting() function prints “Hello!” followed by a newline character (or any other separator), then calling it twice would result in the output: “Hello!\nHello!” (where \n represents the newline character).

If the Greeting() function prints “Hello!” with a space after it, then calling it twice would result in the output: “Hello! Hello!”.

Without the actual implementation of Greeting(), we cannot definitively determine the exact output. However, the most common interpretation would be Option B: Hello!Hello!.

References

Scripting and Programming Foundations documents.

A programming library is a collection of pre-written code that developers can use to optimize tasks and improve productivity. Here’s why the selected statements are correct:

A: Libraries must be included or imported into your program before you can use the functions or objects they contain. This is because the program needs to know where to find the code it’s executing12.

B: A library typically includes multiple functions, objects, or classes that are related to a specific task or area of functionality. This allows developers to reuse code efficiently12.

D: By providing pre-written code, libraries save developers time and effort, which in turn improves their productivity. Instead of writing code from scratch, developers can focus on the unique aspects of their project12.

The other options are incorrect because:

C: While it’s true that poorly designed libraries can affect performance, well-designed libraries can actually make programs more efficient by providing optimized code.

E: A single program can include multiple libraries as needed. There’s no limit to the number of libraries a program can use.

F: Libraries often contain multiple functions and variables, not just one function.

 Behavioral diagrams are a key component in software engineering, particularly within the Unified Modeling Language (UML), which is used to model the dynamic aspects of systems. These diagrams help visualize the behavior of a system over time, including how it responds to various stimuli and the state changes it undergoes during its operation.

The types of behavioral diagrams include:

State Machine Diagrams: These show the state of a system or component at finite instances of time, focusing on state transitions in response to events.

Activity Diagrams: These illustrate the flow of control in a system, modeling both sequential and concurrent activities.

Use Case Diagrams: These depict the functionality of a system and its interaction with external agents.

Sequence Diagrams: These detail the interactions between objects in a sequential order, showing the order of operations.

Communication Diagrams: These show the sequenced messages exchanged between objects.

In the context of the provided image, a behavioral diagram would generally be used to visualize option D, the dynamic flow of software, as it captures the interactions, events, and states that occur within a system during its execution12345.

Comprehensive and Detailed Explanation From Exact Extract:

A function that calculates the average of two numbers (x and y) needs to take those numbers as inputs (parameters) and return their average as the output. According to foundational programming principles (e.g., Certiport Scripting and Programming Foundations Study Guide), functions should accept necessary inputs and return computed results, avoiding unnecessary parameters or outputs.

Option A: "Parameters: x, y, average; Return value: none." This is incorrect. Including average as a parameter is unnecessary since it is the result to be computed. A function with no return value (void in C) would not provide the average to the caller, which defeats the purpose.

Option B: "Parameters: x, y; Return value: average." This is correct. The function needs x and y as inputs to compute (x + y) / 2. The average is returned to the caller. For example, in Python: def average(x, y): return (x + y) / 2.

Option C: "Parameters: none; Return values: x, y." This is incorrect. Without parameters, the function cannot access x and y to compute the average. Returning x and y is irrelevant to the task.

Option D: "Parameters: average; Return values: x, y." This is incorrect. average is the output, not an input, and returning x and y does not provide the computed average.

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

Python Documentation: “Defining Functions” (https://docs.python.org/3/tutorial/controlflow.html#defining-functions).

W3Schools: “C Functions” (https://www.w3schools.com/c/c_functions.php).

A compiled language is one where the source code is translated into machine code by a compiler. This machine code is specific to the type of machine it is compiled for, meaning the same compiled code cannot be run on different types of machines without being recompiled. This process differs from interpreted languages, where the source code is not directly converted into machine code but is instead read and executed by an interpreter, which allows for cross-platform compatibility. Compiled languages are known for their performance efficiency because the machine code is executed directly by the computer’s hardware.

The expression ((x % 8) - y) involves the modulo operation and subtraction. The modulo operation finds the remainder when ( x ) is divided by ( 8 ). Given ( x = 41 ), we calculate ( 41 % 8 ) which equals ( 1 ) because ( 41 ) divided by ( 8 ) equals ( 5 ) with a remainder of ( 1 ). Then, we subtract ( y ) (which is ( 16 )) from this remainder:

(41%8)−16=1−16=−15

However, there seems to be a discrepancy here as the calculation shows the answer should be (-15), but this is not an option provided in your question. Please double-check the options or the expression provided.

In the Agile software development life cycle, the Implementation phase is where the actual coding and development of the project take place. This is the stage where a function to calculate shipping costs based on an item’s weight and delivery zip code would be created. The Implementation phase involves translating the design and analysis work into functional software components. It’s during this phase that developers write code and build features that will eventually be tested and refined in subsequent phases.

 In the context of programming, a string is traditionally understood as a sequence of characters. It can include letters, digits, symbols, and spaces, and is typically enclosed in quotation marks within the source code. For instance, “Hello, World!” is a string. Strings are used to store and manipulate text-based information, such as user input, messages, and textual data within a program. They are one of the fundamental data types in programming and are essential for building software that interacts with users or handles textual content.

Safety and proper procedure are paramount when replacing a light bulb to avoid any electrical hazards or injuries. First, always ensure the lamp is turned off to prevent electrical shock. Next, carefully unscrew the broken or burnt-out bulb from the socket; it might be hot, so caution is advised. After removing the old bulb, screw in the new working bulb securely but without overtightening to avoid damaging the bulb or socket. Finally, turn the lamp on to verify that the new bulb is functioning properly.

References The answer and explanation are based on general knowledge and common safety practices for handling electrical appliances; specific documents or standards on Scripting and Programming Foundations are not applicable here.

The image displays multiple-choice options for ordering tasks needed to safely replace a lamp’s light bulb, providing an interactive learning method for understanding safety procedures in handling electrical items.

Here's the typical flow of the Waterfall software development model:

Analysis: This phase focuses on defining the problem and gathering detailed requirements for the software. Understanding the specific mathematical operations to support is a key part of this phase.

Design: Designers turn the requirements from the analysis phase into a concrete blueprint for the software. This includes architectural and detailed design decisions covering how those mathematical operations will be implemented.

Implementation: Developers take the design and translate it into working code, writing the modules and functions to perform the calculations.

Testing: Testers verify the software to ensure it meets the requirements, including testing how the implemented calculator functions handle different operations.

Maintenance: Ongoing support after deployment to address bugs and introduce potential changes or enhancements.

Why the other options are less accurate:

A. Design and Testing: While testing validates the calculator's functions, the determination of the required operations happens earlier in the process.

B. Implementation and Testing: Implementation builds the calculator, but the specifications and choice of operations happen before coding starts.

C. Design and Implementation: Though closely linked, the design phase finalizes the operation choices before implementation begins.

A sequence diagram is a type of interaction diagram that details how operations are carried out within a system. It is used to model the interactions between objects or components in a sequence that reflects the order of operations, particularly focusing on the messages exchanged between these objects over time. The vertical axis of a sequence diagram represents time, and the horizontal axis represents the objects involved in the interaction. The purpose of a sequence diagram is to illustrate the sequence of messages or events that occur between these objects, typically in the context of a specific use case or scenario within the software system1234.

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:

The least common multiple (LCM) of two positive integers a and b is the smallest number that is a multiple of both. A function to compute the LCM requires a and b as inputs to perform the calculation (e.g., using the formula LCM(a, b) = (a * b) / GCD(a, b), where GCD is the greatest common divisor). According to foundational programming principles, the function’s inputs must include all values needed to compute the output.

Task Analysis:

Goal: Compute LCM of a and b.

Required inputs: The two integers a and b.

Output: The LCM (denoted as L in the question).

Option A: "L only." This is incorrect. L is the output (the LCM), not an input. The function needs a and b to calculate L.

Option B: "a * b." This is incorrect. The product a * b is used in the LCM formula (LCM = (a * b) / GCD(a, b)), but the function needs a and b separately to compute the GCD and then the LCM.

Option C: "a and L." This is incorrect. L is the output, not an input, and the function does not need L to compute itself.

Option D: "a and b." This is correct. The function requires the two integers a and b as inputs to compute their LCM. For example, in Python:

def lcm(a, b):

def gcd(x, y):

while y:

x, y = y, x % y

return x

return (a * b) // gcd(a, b)

Certiport Scripting and Programming Foundations Study Guide (Section on Functions and Parameters).

Cormen, T.H., et al., Introduction to Algorithms, 3rd Edition (Chapter 31: Number-Theoretic Algorithms).

GeeksforGeeks: “LCM of Two Numbers” (https://www.geeksforgeeks.org/lcm-of-two-numbers/).

C, C++, and Java are all considered compiled languages. This means that the code written in these languages is not executed directly by the hardware but must first be translated into machine code by a compiler.

C is a general-purpose programming language that is compiled to generate machine code which can be executed directly by the computer’s CPU1.

C++ is an extension of C that includes object-oriented features. It is also a compiled language, where the source code is converted into machine code that can be executed by the CPU2.

Java is a bit unique because it is compiled into bytecode, which is then run on a virtual machine (JVM) rather than directly by the CPU. However, it is still considered a compiled language because the source code is compiled before it is executed2.

E. The programmer can improve productivity by using libraries.

Why: Libraries offer pre-written, tested code for common tasks. This saves developers time and effort, leading to increased productivity.

F. Using a library prevents a programmer from having to code common tasks by hand.

Why: The core purpose of libraries is to provide reusable code solutions. This eliminates the need to reinvent the wheel for frequently used functions and operations.

Let's evaluate F(3):

F(3) = (4 * 3) - 8

F(3) = 12 - 8

F(3) = 4

The language described in the question exhibits characteristics of an interpreted, object-oriented, and dynamic language. Here’s why these terms apply:

Interpreted: The program can run on various operating systems without re-compilation, which is a trait of interpreted languages. Interpreted languages are executed line by line by an interpreter at runtime, rather than being compiled into machine code beforehand123.

Object-oriented: The use of concepts like information hiding, data abstraction, encapsulation, polymorphism, and inheritance are hallmarks of object-oriented programming (OOP). OOP languages are designed around objects and classes, which allow for modular, reusable, and organized code456.

Dynamic: Variables in the program do not need to have their types declared ahead of time, indicating dynamic typing. In dynamically typed languages, type checking is performed at runtime, and variables can be assigned to different types of data over their lifetime7891011.

Comprehensive and Detailed Explanation From Exact Extract:

The program applies service fees based on two independent conditions: (1) if tickets are printed and mailed, and (2) if tickets are delivered overnight. According to foundational programming principles, multiple independent conditions are best handled by separate if statements, as each fee is applied conditionally and does not require iteration.

Option A: "While loop." This is incorrect. A while loop is used for repeated execution, but applying fees is a one-time decision per ticket order, not a repetitive task.

Option B: "Do-while loop." This is incorrect. A do-while loop guarantees at least one iteration, which is unnecessary here, as the fee application is a single check.

Option C: "If statement." This is incorrect. A single if statement can handle one condition, but two independent conditions (mailed and overnight) require separate checks.

Option D: "Multiple if statements." This is correct. Two if statements can independently check each condition and add the corresponding fee. For example, in Python:

total = ticket_cost

if mailed:

total += mail_fee

if overnight:

total += overnight_fee

Certiport Scripting and Programming Foundations Study Guide (Section on Control Structures: Conditionals).

Python Documentation: “If Statements” (https://docs.python.org/3/tutorial/controlflow.html#if-statements).

W3Schools: “C If Statement” (https://www.w3schools.com/c/c_if_else.php).

 In a program that calculates the average miles per gallon based on miles traveled and gas consumed, the item that holds the miles per gallon should be declared as a variable because it will change depending on the input values. The data type should be a floating-point number (float) because miles per gallon is a value that can have a fractional part, and it is not a fixed value, hence it should not be a constant.

Initialize two variables: x and Count to zero.

Iterate through each number in the NumList.

For each number in the list:

Add the number to x.

Increment Count by one.

After processing all numbers in the list, calculate the average:

Average = x / Count.

The NumList contains the following integers: [1, 3, 5, 6, 7, 8].

Calculating the average: (1 + 3 + 5 + 6 + 7 + 8) / 6 = 30 / 6 = 5.0.

However, none of the provided options match this result. It seems there might be an error in either the options or the calculation.

In the Waterfall model, a traditional software development lifecycle (SDLC) methodology, the design phase follows the requirements phase. During the design phase, the focus is on creating a detailed specification of the system to be developed. This includes:

Architectural Design: Outlining the overall structure of the system.

Interface Design: Defining how the software components will interact with each other and with users.

Component Level Design: Specifying the behavior of individual components.

Data Structure Design: Establishing how data is organized within the system.

The deliverable produced during this phase is a comprehensive design document that describes the architecture, components, interfaces, and data structures of the application in detail. It serves as a blueprint for the next phase of the Waterfall process, which is implementation (coding).

A. round_number(4.723, 2) - This is not a valid function call because there is no function named round_number defined in the given context.

B. convort_value(12) - This is not a valid function call either. Additionally, the expected return value “cVa1” seems to be a typo or an incorrect value.

C. Printsample() - This is a valid function call. It invokes the function named Printsample.

D. CountFactors(96 integer) - This is not a valid function call. The parameter “integer” should not be included in the function call.

E. function Sample(float 2.0) - This is not a valid function call. The function name should not start with the keyword “function,” and the parameter “float 2.0” is not correctly formatted.

F. GetHeight(integer 3, integer 4) - This is a valid function call. It calls the function GetHeight with two integer arguments: 3 and 4.

References

GeeksforGeeks: Function Calling in Programming

Stack Overflow: Different ways to call a function

Comprehensive and Detailed Explanation From Exact Extract:

A valid function call invokes a function by its name, providing the required number and type of arguments in the correct syntax. According to foundational programming principles (e.g., Certiport Scripting and Programming Foundations Study Guide), function calls must follow the language’s syntax rules, typically function_name(arguments).

Option A: "function sample(float 2.0)." This is incorrect. This resembles a function definition (declaring a function named sample with a parameter), not a function call. A call would be sample(2.0).

Option B: "GetHeight(integer 3, 4)." This is incorrect. The syntax integer 3 is invalid in most languages for a function call. A correct call might be GetHeight(3, 4), assuming GetHeight accepts two integers. The inclusion of type keywords (integer) is not typical in function calls.

Option C: "round(4.723, 2)." This is correct. In languages like Python, round(4.723, 2) is a valid call to the built-in round function, which takes a float and an integer (number of decimal places) and returns a rounded value (e.g., 4.72).

Option D: "PrintSample()." This is correct. Assuming PrintSample is a defined function with no parameters, PrintSample() is a valid call (e.g., in Python: def PrintSample(): print("Sample")).

Certiport Scripting and Programming Foundations Study Guide (Section on Functions and Function Calls).

Python Documentation: “Built-in Functions” (https://docs.python.org/3/library/functions.html#round).

W3Schools: “C Functions” (https://www.w3schools.com/c/c_functions.php).

An integer data type is used to represent whole numbers without any fractional or decimal component. In the given options:

A. The number of students in a section is a countable quantity that does not require a fractional part, making it suitable for an integer data type.

B. The cost of a dinner including tax and tip would typically involve a decimal to account for cents, thus requiring a floating-point data type.

C. The weights of patients are usually measured with precision and can have decimal values, necessitating a floating-point data type.

D. An approximation of the number pi to five decimal places is a decimal value and would require a floating-point data type.

A compiled language is one where the source code is translated into machine code, which is a set of instructions that the computer’s processor can execute directly. This translation is done by a program called a compiler. Once the source code is compiled into an executable file, it can be run on the target machine without the need for the original source code or the compiler. This process differs from interpreted languages, where the code is executed one statement at a time by another program called an interpreter, and there is no intermediate executable file created.

Option A describes an interpreted language, not a compiled one. Option B refers to type safety, which is a feature of some programming languages but is not specific to compiled languages. Option C describes a script or an interpreted language, which can be executed immediately by an interpreter without compilation.

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.

In programming, a function that calculates the average of two numbers will require both numbers as input to perform the calculation. These inputs are known as parameters. Once the function has completed its calculation, it should return the result. In this case, the result is the average of the two numbers, which is the return value.

Here’s a simple example in pseudocode:

function calculateAverage(x, y) {

average = (x + y) / 2

return average

}

In this function, x and y are the parameters, and the average is the calculated value that the function returns after execution.

Comprehensive and Detailed Explanation From Exact Extract:

A valid test checks if the algorithm produces the expected output for a given input, according to its specification. The algorithm outputs "OK" for numbers in the range [98.3, 98.9] (inclusive or exclusive bounds not specified, but typically inclusive in such problems) and "Not OK" otherwise. According to foundational programming principles, we evaluate each test case.

Specification:

Input in [98.3, 98.9] → Output: "OK".

Input outside [98.3, 98.9] → Output: "Not OK".

Option A: "Input 98.6. Ensure output is 'Not OK.'" Incorrect. Since 98.6 is between 98.3 and 98.9 (98.3 ≤ 98.6 ≤ 98.9), the output should be "OK", not "Not OK". This test is invalid.

Option B: "Input 98.6. Ensure output is 'OK.'" Correct. 98.6 is within the range, and the expected output is "OK", making this a valid test.

Option C: "Input 99.9. Ensure output is 'OK.'" Incorrect. 99.9 is outside the range (99.9 > 98.9), so the output should be "Not OK", not "OK". This test is invalid.

Option D: "Input 99.9. Ensure output is '98.9.'" Incorrect. The algorithm outputs either "OK" or "Not OK", not a numerical value like "98.9". This test is invalid.

Certiport Scripting and Programming Foundations Study Guide (Section on Algorithm Testing).

General Programming Principles: Testing and Validation.

W3Schools: “Python Conditions” (https://www.w3schools.com/python/python_conditions.asp).

The defining characteristic of an object-oriented language is its support for objects and classes, which encapsulate data and behavior. This includes the ability to define custom variable types (classes) with their own methods, and the use of key principles such as information hiding, data abstraction, encapsulation, polymorphism, and inheritance. These features distinguish object-oriented languages from procedural languages, which do not typically support these concepts in the same way.

In the context of text manipulation, a programming library is a collection of pre-written code that provides standard functions and procedures to perform common tasks. This allows programmers to perform text manipulations with a minimal amount of code, as they can leverage the functions provided by the library instead of writing everything from scratch. Libraries often include functions for string handling, such as searching, splitting, joining, and formatting strings, which are standard requirements in many applications1234.

In the Waterfall approach to software development, the phase that defines and specifies how to build a program is the Design phase. This phase follows the initial Analysis phase, where the requirements are gathered, and precedes the Implementation phase, where the actual coding takes place. During the Design phase, the software’s architecture, components, interfaces, and data are methodically planned out. This phase translates the requirements into a blueprint for constructing the software, ensuring that the final product will meet the specified needs.

Comprehensive and Detailed Explanation From Exact Extract:

The Waterfall methodology is a linear, sequential approach with phases including requirements analysis, design, implementation, testing, and maintenance. According to foundational programming principles (e.g., Certiport Scripting and Programming Foundations Study Guide), the design phase is where the specifics of how to build the program are defined, including system architecture, modules, and technical specifications.

Waterfall Phases Overview:

Analysis: Defines what the program should do (requirements, e.g., user needs or system goals).

Design: Defines how the program will be built (e.g., architecture, data models, function specifications).

Implementation: Writes the code based on the design.

Testing: Verifies the program meets requirements.

Option A: "Design." This is correct. The design phase produces detailed plans, such as system architecture, database schemas, and function or object specifications, outlining how the program will be constructed. For example, it might specify a function like calculateScore() or a class like User.

Option B: "Testing." This is incorrect. Testing verifies the implemented program, not the planning of how to build it.

Option C: "Analysis." This is incorrect. Analysis focuses on gathering requirements (what the program should do), not technical specifics of implementation.

Option D: "Implementation." This is incorrect. Implementation involves coding the program based on the design’s specifics, not defining them.

Certiport Scripting and Programming Foundations Study Guide (Section on Waterfall Methodology).

Sommerville, I., Software Engineering, 10th Edition (Chapter 2: Waterfall Model).

Pressman, R.S., Software Engineering: A Practitioner’s Approach, 8th Edition (Waterfall Design Phase).

Comprehensive and Detailed Explanation From Exact Extract:

A while loop repeatedly executes a block of code as long as a condition is true, making it suitable for tasks requiring iteration until a condition changes. According to foundational programming principles, while loops are ideal for scenarios with an unknown number of iterations or conditional repetition.

Option A: "When the user inputs a number, the program outputs 'True' when the number is a multiple of 10." This is incorrect. This task requires a single check (number % 10 == 0), which can be done with an if statement, not a loop.

Option B: "The user inputs an integer, and the program prints out whether the number is even or odd and whether the number is positive, negative, or zero." This is incorrect. This task involves a single input and multiple conditional checks, handled by if statements, not a loop.

Option C: "After inputting two numbers, the program prints out the larger of the two." This is incorrect. Comparing two numbers requires a single if statement (e.g., if (a > b)), not a loop.

Option D: "A user is asked to enter a password repeatedly until either a correct password is entered or five attempts have been made." This is correct. This task requires repeated input until a condition is met (correct password or five attempts), which is ideal for a while loop. For example, in Python:

attempts = 0

while attempts < 5 and input("Password: ") != "correct":

attempts += 1

Certiport Scripting and Programming Foundations Study Guide (Section on Control Structures: Loops).

Python Documentation: “While Statements” (https://docs.python.org/3/reference/compound_stmts.html#while).

W3Schools: “C While Loop” (https://www.w3schools.com/c/c_while_loop.php).

The expression given is ( x + y^{12} ), with ( x = 12 ) and ( y = 4 ). To evaluate this expression, we substitute the values of ( x ) and ( y ) into the expression:

( x + y^{12} = 12 + 4^{12} )

Since ( 4^{12} ) is a very large number, the significant value in this expression comes from ( 4^{12} ), and the addition of 12 does not change the order of magnitude of the result. Therefore, the value of ( x + y^{12} ) is much greater than the options provided (A. 6, B. 8, C. 14). It seems there might be a typo in the expression or the options provided. If the expression was meant to be ( x + y \times 12 ), then the answer would be:

( x + y \times 12 = 12 + 4 \times 12 = 12 + 48 = 60 )

However, since this option is not available, and based on the provided options, the closest correct answer, assuming the expression is ( x + y ), would be:

( x + y = 12 + 4 = 16 )

But since 16 is not an option, and without further context, the best match from the given options would be C. 14, even though it is not the exact answer.

Comprehensive and Detailed Explanation From Exact Extract:

The loop variable update statement modifies the loop control variable to progress the loop. In this do-while loop, h tracks the number of attempts, and its update is critical to the loop’s termination. According to foundational programming principles, the update statement is typically within the loop body.

Code Analysis:

integer h = 0: Initializes h (not an update).

Put "What is the password?" to output: Outputs prompt (not an update).

String userInput = Get next input: Gets input (not an update).

if userInput != pwd: Conditional check (not an update).

Put "Incorrect." to output: Outputs message (not an update).

h = h + 1: Updates h, incrementing the attempt counter.

while (userInput != pwd) and (h <= 10): Loop condition (not an update).

Option A: "if userInput = pwd." Incorrect. This is a conditional statement, not an update. (Note: The code uses = for comparison, which may be a typo; == is standard.)

Option B: "h = h + 1." Correct. This updates the loop variable h, incrementing it to track attempts.

Option C: "(userInput != pwd) and (h <= 10)." Incorrect. This is the loop condition, not an update.

Option D: "integer h = 0." Incorrect. This is the initialization, not an update.

Certiport Scripting and Programming Foundations Study Guide (Section on Loops and Variables).

C Programming Language Standard (ISO/IEC 9899:2011, Section on Do-While Loops).

W3Schools: “C Do While Loop” (https://www.w3schools.com/c/c_do_while_loop.php).