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[General] Valid Dumps Web-Development-Applications Pdf, Vce Web-Development-Applications T

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【General】 Valid Dumps Web-Development-Applications Pdf, Vce Web-Development-Applications T

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WGU Web Development Applications Sample Questions (Q99-Q104):NEW QUESTION # 99
A web developer need to ensure that a message appears if the user's browser does not support the audio files on a web page.
How should this designer code the audio element?
  • A.
  • B.
  • C.
  • D.
Answer: B
Explanation:
To ensure that a message appears if the user's browser does not support the audio files on a web page, the developer should use the <audio> element correctly. The <audio> element supports fallback content, which is displayed if the browser does not support the specified audio formats.
* Correct Usage:
* Fallback Content: Place the message as fallback content inside the <audio> element. Browsers that do not support the audio format will display this message.
* Example:
<audio>
<source src="audio/song.mp3" type="audio/mpeg" />
No mpeg support.
</audio>
* Explanation of Options:
* Option A: Incorrect. The alt attribute is not valid for the <source> element.
* Option B: Incorrect. The alt attribute is not valid for the <audio> element.
* Option C: Incorrect. The alt attribute is used incorrectly in the <audio> element.
* Option D: Correct. The message "No mpeg support." is placed correctly as fallback content inside the <audio> element.
* References:
* W3C HTML5 Specification - The audio element
* MDN Web Docs - <audio>
Using the fallback content inside the <audio> element ensures that users with unsupported browsers receive a meaningful message, improving the overall user experience.

NEW QUESTION # 100
Given the following code:

What does the #item token do?
  • A. It defines a JavaScript function with one parameter.
  • B. It locates an HTML5 element by its ID
  • C. It creates an XML element.
  • D. It specifies a CSS3 property.
Answer: B
Explanation:
The#itemtoken in CSS is used to select an HTML element by its ID attribute.
* CSS ID Selector:
* Syntax: The ID selector is prefixed with a hash symbol (#) followed by the ID value of the HTML element.
* Example: If the HTML element has an attributeid="item", it can be selected and styled in CSS as:
width: 300px;
}
* Functionality:
* Selects an Element: The ID selector targets the specific HTML element with the matchingidattribute.
* Specificity: ID selectors have high specificity, meaning they will override styles from type selectors and

NEW QUESTION # 101
Which markup ensures that the data entered are either a five-digit ZIP code or an empty string?
  • A. `<input class="[0-9]{5}">`
  • B. `<input pattern="d{5}">`
  • C. `<input required min="5" max="5">`
  • D. `<input type="number" value="5">`
Answer: B
Explanation:
> "The `pattern` attribute in HTML allows developers to specify a regular expression against which the input field is validated."
>
> `d{5}` matches exactly five digits. When `required` is not set, the field can also be left empty - meeting the requirement of 'five digits or empty'.
References:
* MDN Web Docs: pattern attribute
* HTML Forms Constraint Validation
---

NEW QUESTION # 102
Given the following code:
Var a = ''true'';
What is the data type of d?
  • A. Boolean
  • B. String
  • C. Object
  • D. Undefined
Answer: B
Explanation:
The data type of the variable a is 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 variable a is assigned a value.
* References:
* MDN Web Docs - JavaScript Data Types
* W3Schools - JavaScript Data Types

NEW QUESTION # 103
Given the following HTML statement:
```html
<div class="example">Example</div>
```
Which CSS rule hides the `<div>` tag when the browser's width is 600 pixels wide or less?
  • A. ```css
    @media screen and (min-resolution: 600px) {
    div.example {
    display: none;
    }
    }
    ```
  • B. ```css
    @media screen and (max-resolution: 600px) {
    div.example {
    display: none;
    }
    }
    ```
  • C. ```css
    @media screen and (max-width: 600px) {
    div.example {
    display: none;
    }
    }
    ```
  • D. ```css
    @media screen and (min-width: 600px) {
    div.example {
    display: none;
    }
    }
    ```
Answer: C
Explanation:
> "The `@media` rule with `max-width: 600px` targets devices with a screen width of 600 pixels or less. The associated style `display: none;` hides the element when that condition is met." References:
* MDN Web Docs: Using Media Queries
* CSS Media Queries Specification
---

NEW QUESTION # 104
......
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