WGU (KVO1) Web Development Applications Exam Questions Instant Access

Question 1

Which step helps ensure that code passes validation?

AAdopting a single standard

BAdopting multiple standards

CAvoiding references prior to HTML version 4.01

DAvoiding references prior to HTML version 5

Answer : A

Validation checks whether a web page is written according to the rules defined by a particular standard (such as HTML5 or CSS3). To pass validation consistently, it's essential to adhere to one standard throughout the page or project.

'Adopting a single markup standard ensures uniform structure and syntax, reducing errors and inconsistencies that prevent validation success.'

'Mixing different standards can lead to validation errors and unpredictable behavior in web browsers.'

W3C Markup Validation Service Documentation

HTML5 Coding Standards -- W3C

Question 2

What should a developer increase to create space between a border and content?

AMargin

BWidth

CHeight

DPadding

Answer : D

Padding is the CSS property used to create space between the content of an element and its border. It is an internal spacing within the element.

CSS Box Model:

Content: The innermost part, where text and images appear.

Padding: The space between the content and the border.

Border: The edge of the element.

Margin: The space outside the border, creating space between different elements.

Usage:

Padding:

div {

padding: 20px;

}

This code adds 20 pixels of padding on all sides of the content within the div element.

MDN Web Docs - Padding

W3C CSS Box Model

Question 3

Given the following CSS code:

How many seconds elapse before the font-size property begins to increase when a user hovers a mouse pointer over the delay element?

Answer : B

The CSS transition-delay property specifies how long to wait before starting a property transition. In the given CSS code, the transition-delay is set to 2s.

CSS Transition Properties:

transition-property: Specifies the CSS property to which the transition is applied (font-size in this case).

transition-duration: Specifies how long the transition takes (4s).

transition-delay: Specifies the delay before the transition starts (2s).

Example:

Given HTML:

Hover over me

Given CSS:

#delay {

font-size: 14px;

transition-property: font-size;

transition-duration: 4s;

transition-delay: 2s;

}

#delay:hover {

font-size: 36px;

}

When a user hovers over the element with id='delay', it will wait for 2 seconds before the transition effect on font-size starts.

Reference:

MDN Web Docs - transition-delay

W3C CSS Transitions

Question 4

Which layout design is easiest to manage on a variety of devices?

AFlow

BTable

CGrid

DBorder

Answer : C

A grid layout is easiest to manage across a variety of devices due to its flexibility and ability to create responsive designs that adapt to different screen sizes.

Grid Layout:

Responsive Design: Grid layouts can be easily adjusted using media queries to provide a consistent user experience across devices.

CSS Grid Example:

.container {

display: grid;

grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));

}

Other Options:

A . Flow: Often used for text, not layout.

B . Table: Outdated and not responsive.

D . Border: Not commonly used for complex layouts.

MDN Web Docs - CSS Grid Layout

W3Schools - CSS Grid Layout

Question 5

Which code snippet defines a list of choices that automatically alphabetize themselves?

A```html
<input list='titles' name='title'>
<datalist id='titles'>
<li>Ms.</li>
<li>Mrs.</li>
</datalist>
</input>
```

B```html
<input list='titles' name='title'>
<select id='titles'>
<li>Ms.</li>
<li>Mrs.</li>
<li>Mr.</li>
</select>
</input>
```

C```html
<input list='titles' name='title'>
<select id='titles'>
<option value='Ms.'>Ms.</option>
<option value='Mrs.'>Mrs.</option>
<option value='Mr.'>Mr.</option>
</select>
</input>
```

D```html
<input list='titles' name='title'>
<datalist id='titles'>
<option value='Ms.'>
<option value='Mrs.'>
<option value='Mr.'>
</datalist>
```

Answer : D

> ''The correct structure for binding suggestions to an `<input>` element is to use a `<datalist>` with `<option>` children. This enables the browser to suggest predefined values to the user.''

> Although `<datalist>` does not alphabetize values automatically, among the options, only Option D uses valid HTML for `datalist`, making it the correct snippet syntactically.

* MDN Web Docs: <datalist> and <option>

* HTML Specification: datalist behavior

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Question 6

Which event occurs when a user closes a browser?

Asubmit

Bunload

Cabort

Dreset

Answer : B

> ''The `unload` event is fired when the document or a child resource is being unloaded. This includes closing the browser window or navigating away from the page.''

> ''Events like `submit`, `abort`, and `reset` are related to form actions, not page unloads.''

* MDN Web Docs: Window unload event

* HTML Living Standard: GlobalEventHandlers

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Question 7

Given the following code:

```javascript

var a;

```

What is the value of `a`?

ANull

BUndefined

CTrue

DFalse

Answer : B

> ''When a variable is declared but not initialized, its value is `undefined` by default in JavaScript.''

> Example:

```javascript

var a;

console.log(a); // undefined

```

* `null` must be explicitly assigned.

* `true` and `false` are Boolean values not assigned in this declaration.

* MDN Web Docs: undefined

* JavaScript Language Specification: Variable declarations

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WGU Web Development Applications (KVO1) WGU (KVO1) Web Development Applications Exam Questions