Scripting-and-Programming-Foundations Certification Exam Questions with AI Explanations

QUESTION: 17

Which data type should be used to hold the value of a person's body temperature in Fahrenheit?

Integer
String
Float
Boolean

Answer(s): C

Explanation:

Comprehensive and Detailed Explanation From Exact Extract:

Body temperature in Fahrenheit typically includes decimal precision (e.g., 98.6°F). According to foundational programming principles, a floating-point type is suitable for values with decimal components.

Option A: "Integer." This is incorrect. Integers cannot store decimal values, and body temperature often requires precision (e.g., 98.6 99).

Option B: "String." This is incorrect.
While a string could store "98.6" as text, it's not suitable for numerical calculations (e.g., averaging temperatures).

Option C: "Float." This is correct. A floating-point type (float) can store decimal values like 98.6, making it ideal for body temperature. For example, in C: float temp = 98.6;.

Option D: "Boolean." This is incorrect. Booleans store true/false values, not numerical temperatures.

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

Python Documentation: "Floating Point Types"
(https://docs.python.org/3/library/stdtypes.html#numeric-types-int-float-complex).

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

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QUESTION: 18

What is required for all function calls?

Parameters
Input arguments
Output values
Function name

Answer(s): D

Explanation:

When calling a function in Python, you simply give the name of the function followed by parentheses. Even if the function doesn't take any arguments, you still need to include the parentheses. For example, print("Hello!") is a function call. The function name should describe what it's supposed to do. Function definitions begin with the def keyword, followed by the function name and parameters (if any). The statements within the function definition are indented and carry out the task the function is supposed to perform2.

Reference:

Function Calls and Definitions Real Python

Function Calls | Microsoft Learn

Stack Overflow: Find all function calls by a function

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QUESTION: 19

Which operator is helpful in determining if an integer is a multiple of another integer?

Answer(s): A

Explanation:

The operator that is helpful in determining if an integer is a multiple of another integer is the modulus operator, represented by / in some programming languages and % in others. This operator returns the remainder of the division of one number by another. If the remainder is zero, it indicates that the first number is a multiple of the second. For example, 6 % 3 would return 0, confirming that 6 is a multiple of 3.

Reference:

This explanation is based on standard programming knowledge where the modulus or remainder operator is used to determine multiples1.

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QUESTION: 20

A function should determine the average of x and y.
What should be the function's parameters and return value(s)?

Parameters: x, y, averageReturn value: none
Parameters: x, yReturn value: average
Parameters: noneReturn values: x, y
Parameters: averageReturn values: x, y

Answer(s): B

Explanation:

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).

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QUESTION: 21

Which phase of a Waterfall approach defines specifics on how to build a program?

Design
Testing
Analysis
Implementation

Answer(s): A

Explanation:

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).

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QUESTION: 22

Which expression evaluates to 14 if integer y = 13?

11 + y % 5
11 - y / 5.0
(11 + y) % 5
11.0 - y / 5

Answer(s): A

Explanation:

To find an expression that evaluates to 14 when y = 13, let's evaluate each option:

A . 11 + y % 5: The modulo operation (%) gives the remainder after division. For y = 13, 13 % 5 equals
3. Adding 11 to 3 results in 14, so this expression is correct.

B . 11 - y / 5.0: Dividing 13 by 5.0 gives 2.6. Subtracting 2.6 from 11 does not yield 14, so this expression is incorrect.

C . (11 + y) % 5: Adding 11 to 13 results in 24. Taking the modulo of 24 with 5 gives 4, which is not equal to 14. Therefore, this expression is incorrect.

D . 11.0 - y / 5: Dividing 13 by 5 gives 2.6. Subtracting 2.6 from 11.0 does not yield 14, so this expression is incorrect.

The correct expression is A. 11 + y % 5.

Reference:

Prealgebra: Simplifying and Evaluating Expressions With Integers

MathPapa: Evaluating Expressions Using Algebra Calculator

GeeksforGeeks: Expression Evaluation

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QUESTION: 23

What is a string?

A built-in method
A very precise sequence of steps
A sequence of characters
A name that refers to a value

Answer(s): C

Explanation:

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.

Reference:

Coderslang: Become a Software Engineer1

Wikipedia2

Programming Fundamentals3

TechTerms4

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QUESTION: 24

What does a function definition consist of?

The function's name, inputs, outputs, and statements
A list of all other functions that call the function
An invocation of a function's name
The function's argument values

Answer(s): A

Explanation:

Comprehensive and Detailed Explanation From Exact Extract:

A function definition specifies how a function operates, including its name, parameters (inputs), return type or values (outputs), and the statements it executes. According to foundational programming principles, a function definition is distinct from a function call or its usage.

Option A: "The function's name, inputs, outputs, and statements." This is correct. A function definition includes:

Name (e.g., myFunction).

Inputs (parameters, e.g., int x, int y).

Outputs (return type or value, e.g., int or return x + y).

Statements (body, e.g., { return x + y; } in C).For example, in Python: def add(x, y): return x + y.

Option B: "A list of all other functions that call the function." This is incorrect. A function definition does not track or include its callers; it defines the function's behavior.

Option C: "An invocation of a function's name." This is incorrect. An invocation (call) is when the function is used (e.g., add(2, 3)), not its definition.

Option D: "The function's argument values." This is incorrect. Argument values are provided during a function call, not in the definition, which specifies parameters (placeholders).

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

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

W3Schools: "C Function Definitions" (https://www.w3schools.com/c/c_functions.php).

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Free WGU Scripting-and-Programming-Foundations Real Questions (page: 19)

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