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WGU Web Development Applications Sample Questions (Q124-Q129):
NEW QUESTION # 124
Which layout method causes images to render to small or too large in browser windows of different sizes?
Answer: B
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 # 125
Given the following code:
What does the console display as output?
Answer: A
Explanation:
Given the code segment:
var a = "8";
var b = "6";
var c = a + b;
console.log(c);
This code concatenates two strings.
* Explanation:
* var a = "8";: Variable a is assigned the string "8".
* var b = "6";: Variable b is assigned the string "6".
* var c = a + b;: The + operator concatenates the two strings, resulting in "86".
* console.log(c);: Outputs the value of c to the console.
* Output:
* The console displays "86" because it concatenates the two string values.
* References:
* MDN Web Docs - String
* W3Schools - JavaScript String
NEW QUESTION # 126
What is the purpose of cascading style sheets (CSSs)?
Answer: C
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 # 127
Which HTML tag should a developer use to create a drop-down list?
Answer: B
Explanation:
The<select>tag is used in HTML to create a drop-down list. It is used in conjunction with the<option>tags to define the list items within the drop-down menu.
* Purpose of<select>: The<select>element is used to create a control that provides a menu of options.
The user can select one or more options from the list.
* Structure of Drop-down List:
* The<select>element encloses the<option>elements.
* Each<option>element represents an individual item in the drop-down list.
* Usage Example:
<label for="cars">Choose a car:</label>
<select id="cars" name="cars">
<option value="volvo">Volvo</option>
<option value="saab">Saab</option>
<option value="fiat">Fiat</option>
<option value="audi">Audi</option>
</select>
In this example, the<select>tag creates a drop-down list with four options: Volvo, Saab, Fiat, and Audi.
* Attributes of<select>:
* name: Specifies the name of the control, which is submitted with the form data.
* id: Used to associate the<select>element with a label using the<label>tag'sforattribute.
* multiple: Allows multiple selections if set.
:
MDN Web Docs on<select>
W3C HTML Specification on Forms
NEW QUESTION # 128
A developer tests a website on a tablet and notices that the font is small and unreadable.
What should this developer do to fix the issue?
Answer: C
Explanation:
> "To improve readability on tablets and mobile screens, developers should apply responsive design principles. This involves using relative font sizes, media queries, and viewport settings to build the site for mobile devices."
> Updating the HTML version or SSL has no effect on font size or layout.
References:
* MDN Web Docs: Responsive Design
* Google Developer Guidelines: Mobile-Friendly Sites
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NEW QUESTION # 129
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