New Web-Development-Applications Test Book - Web-Development-Applications Latest Exam Registration

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Web-Development-Applications Latest Exam Registration - Test Web-Development-Applications Study Guide

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WGU Web Development Applications Sample Questions (Q66-Q71):

NEW QUESTION # 66
Given the following code:

What is the value of the variable data when the code runs?

A. Null
B. An empty string
C. Undefined
D. A single-character string

Answer: B

Explanation:
In JavaScript, assigning an empty pair of quotes to a variable creates an empty string.
* Variable Assignment:
* Given the code:
var data = "";
* The variable data is assigned an empty string.
* Explanation:
* Option A: Null is incorrect because the variable is assigned an empty string, not null.
* Option B: A single-character string is incorrect because the string is empty.
* Option C: Undefined is incorrect because the variable is assigned a value, even though it is an empty string.
* Option D: An empty string is correct because "" represents an empty string.
* References:
* MDN Web Docs - String
* W3Schools - JavaScript Strings

NEW QUESTION # 67
Where can users items using the HTML

A. From a web page to another web page
B. From a user's computer to another computer
C. From a web page to a user's computer
D. From a user's computer to a web page

Answer: D

Explanation:
Using HTML, users can upload files from their computer to a web page using the <input> element with the type="file" attribute.
* File Upload Input: The <input type="file"> element is used in forms to allow users to select files from their local file system to be uploaded to a server.
* Usage Example:
The <canvas> element in HTML5 is used to render images and graphics dynamically through JavaScript. It is a powerful feature for creating graphics, game visuals, data visualizations, and other graphical content directly in the browser.
* Canvas Element: The <canvas> element is an HTML tag that, with the help of JavaScript, can be used to draw and manipulate graphics on the fly.
* Usage Example:
html
Copy code
<canvas id="myCanvas" width="200" height="100"></canvas>
<script>
var canvas = document.getElementById("myCanvas");
var ctx = canvas.getContext("2d");
ctx.fillStyle = "#FF0000";
ctx.fillRect(0, 0, 200, 100);
</script>
In this example, a red rectangle is drawn on a canvas element.
References:
* MDN Web Docs on <canvas>
* W3C HTML Canvas 2D Context Specification
<form action="/upload" method="post" enctype="multipart/form-data">
<input type="file" name="fileToUpload" id="fileToUpload">
<input type="submit" value="Upload File" name="submit">
</form>
In this example, users can choose a file from their computer and upload it to the specified server endpoint.
References:
* MDN Web Docs on <input type="file">
* W3C HTML Specification on File Upload

NEW QUESTION # 68
Which HTML5 attribute specifies where to send the form data for processing a form is submitted?

A. Enctype
B. Action
C. Method
D. Target

Answer: B

Explanation:
The action attribute in the <form> element specifies the URL where the form data should be sent for processing when the form is submitted.
* Action Attribute: This attribute defines the endpoint that will handle the submitted form data.
* Usage Example:
<form action="/submit-form" method="post">
<input type="text" name="username">
<input type="submit" value="Submit">
</form>
Here, the form data is sent to the /submit-form URL when submitted.
References:
* MDN Web Docs on <form> action attribute
* W3C HTML Specification on Forms

NEW QUESTION # 69
Which element attaches an external CSS document to a web page?

A. <Link>
B. <style>
C. <Meta>
D. <Script>

Answer: A

Explanation:
To attach an external CSS document to a web page, the <link> element is used within the <head> section of the HTML document.
* <link> Element:
* Purpose: Links external resources, such as stylesheets, to the HTML document.
* Attributes:
* rel="stylesheet": Specifies the relationship between the current document and the linked resource.
* href="path/to/stylesheet.css": Specifies the URL of the external stylesheet.
* Example:
<head>
<link rel="stylesheet" href="styles.css">
</head>
* Other Options:
* <style>: Used to embed internal CSS directly within the HTML document, not for linking external CSS.
* <script>: Used to embed or link to JavaScript files.
* <meta>: Provides metadata about the HTML document, not for linking stylesheets.
* References:
* W3C HTML5 Specification - The link element
* MDN Web Docs - <link>
By using the <link> element correctly, you can ensure that your web page is styled with external CSS, maintaining a separation of concerns and making your HTML more manageable.

NEW QUESTION # 70
What allows a scripting language to manipulate elements on a web page?

A. CSS
B. DOM
C. HTML
D. XML

Answer: B

Explanation:
The Document Object Model (DOM) is an API for HTML and XML documents that defines the logical structure of documents and the way a document is accessed and manipulated.
* DOM Explanation:
* The DOM represents the page so that programs can change the document structure, style, and content.
* It provides a way for scripts to update the content, structure, and style of a document while it is being viewed.
* Explanation:
* Option A: CSS is incorrect because it is used for styling web pages.
* Option B: XML is incorrect because it is a markup language, not an API for manipulating web page elements.
* Option C: HTML is incorrect because it is the markup language used to create web pages, not an API for manipulation.
* Option D: DOM is correct because it allows a scripting language to manipulate elements on a web page.
* References:
* MDN Web Docs - DOM
* W3Schools - JavaScript HTML DOM

NEW QUESTION # 71
......

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New Web-Development-Applications Test Book - Web-Development-Applications Latest Exam Registration

Web-Development-Applications Latest Exam Registration - Test Web-Development-Applications Study Guide

WGU Web Development Applications Sample Questions (Q66-Q71):

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