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WGU Web Development Applications Sample Questions (Q50-Q55):

NEW QUESTION # 50
Given the following code:
Var a = ''true'';
What is the data type of d?

Answer: A

Explanation:
The data type of the variableais determined by the value assigned to it. In JavaScript, if a value is enclosed in double or single quotes, it is treated as a string.
* Variable Assignment:
* Given the code:
var a = "true";
* The value"true"is enclosed in double quotes, making it a string.
* Explanation:
* Option A: Boolean is incorrect because the value"true"is a string, not a boolean.
* Option B: String is correct because the value is enclosed in double quotes.
* Option C: Object is incorrect because the value is a primitive string.
* Option D: Undefined is incorrect because the variableais assigned a value.
:
MDN Web Docs - JavaScript Data Types
W3Schools - JavaScript Data Types


NEW QUESTION # 51
A web page has the following CSS code:

Which selector should a developer use to invoke the CSS?

Answer: D

Explanation:
To invoke the CSS provided, an ID selector is used. In CSS, the ID selector is used to style the element with the specific id attribute.
* CSS ID Selector: The syntax for the ID selector is#id, whereidis the id attribute value of the HTML element.
* Usage Example:
#black {
color: black;
}
This CSS rule will apply thecolor: black;style to the element withid="black".
* Example in HTML:
<div id="black">This text will be black.</div>
:
MDN Web Docs on ID Selectors
W3C CSS Specification on Selectors


NEW QUESTION # 52
Which technique should a developer use for text-based hyperlink on mobile web page?

Answer: D

Explanation:
When designing text-based hyperlinks for mobile web pages, it is essential to ensure that the links are easily tappable. Adding padding around the clickable area increases the touch target size, making it easier for users to interact with the link on a mobile device.
* Techniques for Mobile-Friendly Links:
* Padding the Clickable Area: By adding padding, you increase the touchable area around the link, which helps prevent user frustration due to missed taps.
* CSS Example:
a {
padding: 10px;
display: inline-block;
}
* Other Options:
* B. Keeping links uniform: This refers to making all links look the same, which is good for consistency but doesn't specifically address the issue of touch targets.
* C. Deploying graphical links: While graphical links can be effective, they do not necessarily improve touch target size for text-based hyperlinks.
* D. Using dynamic page elements near the link: This can lead to a cluttered interface and does not address the touch target issue directly.
* References:
* MDN Web Docs - Touch targets
* Google Developers - Mobile Web Development


NEW QUESTION # 53
Given the following code:
html
Copy
Edit
<!DOCTYPE html>
<html>
<head>
<style>
p { font-family: Georgia, serif; }
</style>
</head>
<body>
<h1>The font-family Property</h1>
<p>The quick brown fox jumps over the lazy dog.</p>
</body>
</html>
Which CSS rule would ensure the heading displays at 16pt size?

Answer: A

Explanation:
To style an <h1> tag, you use the element selector h1, and to define the size of the font, use the font-size property. The text-size property does not exist in CSS.
Correct rule:
h1 {
font-size: 16pt;
}
"The font-size property sets the size of the font. Use element selectors (like h1) to apply styles to all elements of that type." References:
CSS Fonts Specification
MDN Web Docs - font-size
W3Schools - CSS Font Properties


NEW QUESTION # 54
Given the following code:

What is occurring?

Answer: A

Explanation:
The given code snippet demonstrates how JavaScript can manipulate the DOM to change the style of an element.
* Code Analysis:
* Given the HTML:
<h1 id="id1">Blog Title</h1>
<button type="button" onclick="document.getElementById('id1').style.color = 'red'">Click Here</button>
* When the button is clicked, the JavaScript code within theonclickattribute changes the color of theh1element to red.
* Explanation:
* Option A: An event handler tracking keyboard strokes is incorrect because the event handler is tracking a mouse click, not keyboard strokes.
* Option B: JavaScript is using the DOM to make a style change is correct because theonclickattribute contains JavaScript code that modifies the style of theh1element.
* Option C: In-line CSS is styling the<h1>tag is incorrect because the style change is done via JavaScript, not inline CSS.
:
MDN Web Docs - Document.getElementById()
W3Schools - JavaScript HTML DOM


NEW QUESTION # 55
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