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WGU Scripting and Programming Foundations Exam Sample Questions (Q125-Q130):
NEW QUESTION # 125
Which characteristic distinguishes a markup language from other languages?
- A. It allows variables to change type during execution.
- B. It does not perform complex algorithms, but instead describes the content and formatting of webpages and other documents.
- C. It supports decomposing programs into custom types that often combine with other variable types into more concepts.
- D. It requires fewer variables and variable conversions than other languages because the types can change during execution.
Answer: B
Explanation:
Comprehensive and Detailed Explanation From Exact Extract:
Markup languages, such as HTML and XML, are designed to structure and format content, not to perform computation or execute algorithms. According to foundational programming principles, this focus on describing content distinguishes markup languages from programming languages.
* Option A: "It supports decomposing programs into custom types that often combine with other variable types into more concepts." This is incorrect. Markup languages do not support programming concepts like custom types or variable combinations. They focus on tagging content (e.g., <p> for paragraphs).
* Option B: "It allows variables to change type during execution." This is incorrect. Markup languages are not programming languages and do not involve variables or execution. Typing (dynamic or static) is irrelevant to markup languages.
* Option C: "It requires fewer variables and variable conversions than other languages because the types can change during execution." This is incorrect. Markup languages do not use variables or support execution, so the concept of variable conversions or dynamic typing does not apply.
* Option D: "It does not perform complex algorithms, but instead describes the content and formatting of webpages and other documents." This is correct. Markup languages like HTML and XML are used to define the structure and presentation of content (e.g., webpages, documents) without executing algorithms or performing computations.
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).
NEW QUESTION # 126
Which data type should be used to hold the value of a person's body temperature in Fahrenheit
- A. Boolean
- B. String
- C. Integer
- D. Float
Answer: D
Explanation:
When dealing with body temperature, especially in Fahrenheit, the appropriate data type to use is a floating- point number (float). Here's why:
* Measurement Precision:
* Body temperature can have decimal values, such as 98.6°F.
* Integer data types (like B. Integer) cannot represent fractional values.
* Floats allow for greater precision and can handle decimal places.
* Temperature Scales:
* Fahrenheit is a continuous scale, not a discrete set of values.
* It includes both positive and negative values (e.g., sub-zero temperatures).
* Floats accommodate this range effectively.
* Examples:
* A person's body temperature might be 98.6°F (normal) or 101.3°F (fever).
* These values require a data type that can handle fractions.
NEW QUESTION # 127
Which characteristic specifically describes an object-oriented language?
- A. Supports creating programs as a set of functions
- B. Can be run on any machine that has an interpreter
- C. Requires a compiler to convert to machine code
- D. Supports creating program as item that have data plus operations
Answer: D
Explanation:
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.
NEW QUESTION # 128
What is the proper way to declare a student's grade point average throughout the term it this item is needed in several places in a program?
- A. constant float gpa
- B. variable float gpa
- C. constant int gpa
- D. variable int gpa
Answer: B
Explanation:
A student's grade point average (GPA) is a numerical representation that typically includes a decimal to account for the precision of the average (e.g., 3.75). Therefore, it should be declared as a floating-point data type to accommodate the decimal part. Since a student's GPA can change over time with the addition of new grades, it should be declared as a variable rather than a constant.
NEW QUESTION # 129
Which action occurs during the design phase of an Agile process?
- A. Writing the required objects
- B. Determining the functions that need to be written
- C. Deciding on the name of the program
- D. Determining the goals of the project
Answer: B
Explanation:
Comprehensive and Detailed Explanation From Exact Extract:
In Agile, the design phase focuses on creating technical specifications and plans for implementing the software, including identifying functions, classes, or modules. According to foundational programming principles, this phase bridges requirements (from analysis) to coding (in implementation).
* Option A: "Determining the functions that need to be written." This is correct. During the design phase, the team specifies the functions, methods, or components (e.g., function signatures, class methods) required to meet the requirements. For example, designing a calculateTotal() function for an e- commerce system occurs here.
* Option B: "Determining the goals of the project." This is incorrect. Project goals are established during the analysis phase, where requirements and user stories are defined.
* Option C: "Writing the required objects." This is incorrect. Writing code (e.g., implementing classes or objects) occurs during the implementation phase, not design.
* Option D: "Deciding on the name of the program." This is incorrect. Naming the program is a minor decision, typically made earlier (e.g., during project initiation or analysis), and is not a primary focus of the design phase.
Certiport Scripting and Programming Foundations Study Guide (Section on Agile Design Phase).
Agile Alliance: "Agile Design" (https://www.agilealliance.org/glossary/design/).
Fowler, M., Refactoring: Improving the Design of Existing Code (design principles in Agile).
NEW QUESTION # 130
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