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WGU Web Development Applications Sample Questions (Q20-Q25):

NEW QUESTION # 20
What does a form field default to if the type attribute is omitted from a form?

A. Date
B. Text
C. number
D. Range

Answer: B

Explanation:
If the type attribute is omitted from an <input> element, it defaults to text.
* HTML Input Default Type:
* Default Type: The default value for the type attribute in an <input> element is text.
* Example:
* Given the HTML:
<input>
* This will render as a text input field.
* References:
* MDN Web Docs - <input>
* W3Schools - HTML Input Types

NEW QUESTION # 21
Which code segment correctly defines a function in JavaScript?

A. Void addNumber(int a, int b)
B. Function addNumbers (a, b)
C. Void addNumbers(a, b)
D. Function addNumber (in a, int b)

Answer: B

Explanation:
In JavaScript, functions are defined using the function keyword followed by the name of the function, a set of parentheses (), and a block of code enclosed in curly braces {}.
* Function Definition Syntax:
* Correct Syntax:
function addNumbers(a, b) {
// function body
}
* Explanation:
* function: Keyword to define a function.
* addNumbers: Name of the function.
* (a, b): Parameters for the function.
* { ... }: Function body containing the code to be executed.
* Incorrect Options:
* A. Void addNumbers(a, b): JavaScript does not use void to define functions.
* C. Void addNumber(int a, int b): JavaScript does not use void or type declarations (int).
* D. Function addNumber (in a, int b): JavaScript functions do not use type declarations.
* References:
* MDN Web Docs - Functions
* W3Schools - JavaScript Functions

NEW QUESTION # 22
Which CSS transformation method should a developer use to reposition an element horizontally on the 2-D plane?

A. Scalex(n)
B. Skewx (angle)
C. Translatex(n)
D. Scale (x,y)

Answer: C

Explanation:
The translateX(n) method in CSS is used to move an element horizontally on the 2-D plane by a specified distance. This transformation repositions the element along the X-axis.
* translateX(n) Method: The translateX(n) function moves an element horizontally by n units. Positive values move the element to the right, while negative values move it to the left.
* Usage Example:
element {
transform: translateX(100px);
}
In this example, the element is moved 100 pixels to the right.
* Properties:
* n: This represents the distance to move the element. It can be specified in various units such as pixels (px), percentages (%), ems (em), etc.
References:
* MDN Web Docs on transform
* W3C CSS Transforms Module Level 1

NEW QUESTION # 23
What is the purpose of cascading style sheets (CSSs)?

A. Setting rules to define how page content looks when rendered
B. Providing functionality that was previously provided by plug-ins
C. Structuring and describing web page content
D. Changing the content of a web page dynamically

Answer: A

Explanation:
Cascading Style Sheets (CSS) are used to control the presentation of web pages, including aspects such as layout, colors, fonts, and other visual styles. They are a cornerstone technology of the World Wide Web, along with HTML and JavaScript. Here's a detailed breakdown:
* Purpose of CSS: CSS is designed to enable the separation of document content (written in HTML or a similar markup language) from document presentation, including elements such as the layout, colors, and fonts. This separation can improve content accessibility, provide more flexibility and control in the specification of presentation characteristics, enable multiple web pages to share formatting, and reduce complexity and repetition in the structural content.
* Setting Visual Rules: CSS allows developers to define rules that specify how different elements of a web page should be displayed. For example, CSS rules can change text color, font size, spacing between elements, and even the overall layout of the web page. These rules are applied by the browser to render the web page according to the defined styles.
* Cascading Nature: The term "cascading" in CSS refers to the process of combining multiple style sheets and resolving conflicts between different CSS rules. This allows developers to use different sources of style information, which can be combined in a hierarchical manner. For instance, a browser style sheet, an external style sheet, and inline styles can all contribute to the final rendering of a web page.
* Benefits of CSS:
* Consistency: By using CSS, developers can ensure a consistent look and feel across multiple web pages.
* Maintainability: CSS makes it easier to update the visual presentation of a web page without altering the HTML structure. This is particularly useful for maintaining large websites.
* Reusability: CSS rules can be reused across multiple pages, reducing redundancy and making it easier to implement changes globally.
* Examples of CSS:
css
Copy code
body {
background-color: lightblue;
}
h1 {
color: navy;
margin-left: 20px;
}
In this example, the body element is given a light blue background color, and the h1 element is styled with a navy color and a left margin of 20 pixels.
References:
* MDN Web Docs on CSS
* W3C CSS Specifications

NEW QUESTION # 24
What is the effect of using the in-line validation process during user input?

A. Slower rate of form completion
B. Increased computation on the server
C. More successful form completion rates
D. Larger number of errors created

Answer: C

Explanation:
Inline validation during user input provides immediate feedback to the user about the correctness of their input. This real-time feedback helps users correct mistakes as they go, leading to higher rates of successful form completion.
* Inline Validation: Inline validation refers to checking the validity of input data as it is entered, rather than waiting until the form is submitted. This helps users to receive immediate feedback and correct errors on the spot.
* Benefits:
* Immediate Feedback: Users can correct mistakes immediately, which helps reduce frustration and confusion.
* Increased Success Rates: By providing real-time feedback, users are more likely to complete the form correctly, resulting in higher completion rates.
* User Experience: Improves the overall user experience by making the process more interactive and user-friendly.
References:
* Nielsen Norman Group on Inline Validation
* MDN Web Docs on Constraint Validation

NEW QUESTION # 25
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