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WGU Web Development Applications Sample Questions (Q89-Q94):

NEW QUESTION # 89
What is the process for JavaScript from validation?

Answer: B

Explanation:
JavaScript form validation typically occurs after the form is submitted but before the form data is sent to the server. This allows the client-side script to check the input data and prevent the form from being submitted if the data is invalid.
* Client-Side Validation:
* Before Form Submission: JavaScript validates the form fields after the user attempts to submit the form.
* Prevent Default Submission: If the validation fails, JavaScript can prevent the form from being submitted and display appropriate error messages.
* Usage Example:
document.getElementById("myForm").addEventListener("submit", function(event) { var isValid = true;
// Perform validation checks
if (!isValid) {
event.preventDefault(); // Prevent form submission
alert("Please correct the errors.");
}
});
This example prevents form submission if the validation fails.
References:
* MDN Web Docs on Form Validation
* W3C HTML Specification on Form Submission


NEW QUESTION # 90
Given the following HTML code:

And given the following CSS selector:

Which elements will the CSS be applied to?

Answer: B

Explanation:
Given the CSS selector a, ul, it targets all anchor (<a>) elements and all unordered list (<ul>) elements independently. This means the CSS rule will be applied to each <a> and <ul> element in the HTML document.
* CSS Selector Analysis:
* a: This part of the selector targets all <a> elements in the document.
* ,: The comma is a selector separator, meaning that each part of the selector list is applied independently.
* ul: This part of the selector targets all <ul> elements in the document.
* Example:
* Given HTML:
<p>
<a href="http://example.com/link0">Link 0</a>
<a href="http://example.com/link1">Link 1</a>
</p>
<ul>
<li>Hello</li>
</ul>
<p>
<a href="http://example.com/link2">Link 2</a>
<a href="https://example.com/link3">Link 3</a>
</p>
<b>Sample</b>
* Given CSS:
a, ul {
color: red;
}
* Affected Elements: All <a> and <ul> elements will have the color set to red.
* References:
* MDN Web Docs - Comma combinator
* W3C CSS Selectors Level 3


NEW QUESTION # 91
Which layout method causes images to render to small or too large in browser windows of different sizes?

Answer: A

Explanation:
A fixed-width layout method specifies exact pixel values for widths. This approach does not adapt to different screen sizes, leading to images rendering too small or too large on various devices.
* Fixed Width Layout:
* Definition: Uses specific pixel values for the width of elements.
* Example:
container {
width: 800px;
}
* Issues:
* Lack of Flexibility: Does not scale with the size of the viewport, causing images and other elements to appear incorrectly sized on different screen sizes.
* Comparison:
* Fluid/Liquid: Adapts to the screen size using percentages or other relative units.
* Relative Width: Also adapts using units like em or %.
* References:
* MDN Web Docs - Fixed vs. Fluid Layout
* W3C CSS Flexible Box Layout Module Level 1
Using fixed-width layouts can result in poor user experience across different devices, highlighting the importance of responsive design principles.
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NEW QUESTION # 92
Which type of operation should a developer use to set a condition when adding a media query?

Answer: A

Explanation:
> "Media queries rely on Boolean logic to define conditions. Keywords like `and`, `or`, and `not` are used to combine or negate media features." Example:
```css
@media screen and (min-width: 600px) and (max-width: 900px)
```
References:
* MDN Web Docs: Media Queries - Logical Operators
* CSS Media Queries Level 4 Specification
---


NEW QUESTION # 93
Which event fires when an issue occurs while an external file loads?

Answer: C

Explanation:
> "The `error` event is triggered when an error occurs during the loading of an external file such as an image, script, or style."
>
> "Events like `stalled` and `suspend` relate more to media buffering; `invalid` relates to form input validation." References:
* MDN Web Docs: GlobalEventHandlers.onerror
* HTML Standard: Error event
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Here are the fully corrected, verified, and formatted answers for Questions 37 to 40, as per your specifications:
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NEW QUESTION # 94
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