WGU WGU-KVO1 Online Practice Questions and Exam Preparation

WGU WGU-KVO1 Online Questions & Answers

• Question 1:

  Which feature was introduced in HTML5?

  A. Addition of CSS in the HTML file
  B. Adherence to strict XML syntax rules
  C. Ability to hyperlink to multiple web pages
  D. Native drag-and-drop capability
  D. Native drag-and-drop capability

  ---

  Explanation

  HTML5 introduced several new features that enhanced web development capabilities significantly. One of the notable features is the native drag-and-drop capability.

  Native Drag-and-Drop Capability:

  Description: HTML5 allows developers to create drag-and-drop interfaces natively using the draggable attribute and the DragEvent interface. This means elements can be dragged and dropped within a web page without requiring external

  JavaScript libraries.

  Implementation:

  Making an Element Draggable: To make an element draggable, you set the draggable attribute to true:

  Drag me!

  Handling Drag Events: You use event listeners for drag events such as dragstart, dragover, and drop:

  document.getElementById("drag1").addEventListener("dragstart", function(event) {

  event.dataTransfer.setData("text", event.target.id);

  });

  document.getElementById("dropzone").addEventListener("dragover", function(event) {

  event.preventDefault();

  });

  document.getElementById("dropzone").addEventListener("drop", function(event) {

  event.preventDefault();

  var data = event.dataTransfer.getData("text");

  event.target.appendChild(document.getElementById(data));

  });

  Example: This example demonstrates a simple drag-and-drop operation:

  html

  Copy code

  Drag me!

  Drop here

  References:

  W3C HTML5 Specification - Drag and Drop

  MDN Web Docs - HTML Drag and Drop API

  HTML5 Doctor - Drag and Drop

  HTML5's native drag-and-drop feature streamlines the process of creating interactive web applications by eliminating the need for third-party libraries, thus making it a powerful addition to the HTML standard.

• Question 2:

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

  A. Padding the clickable area around the link
  B. Keeping links uniform
  C. Deploying graphical links
  D. Using dynamic page elements neat the link
  A. Padding the clickable area around the link

  ---

  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

• Question 3:

  A web page has a section that contains an

  element. The element is always 10 pixels to the right of its position.

  Which type of layout positioning should the

  element use?

  A. Relative
  B. Fixed
  C. Absolute
  D. Static

  A. Relative

  ---

  Explanation

  Relative positioning in CSS positions an element relative to its normal position. Using position: relative; allows you to adjust the element's position with the top, right, bottom, or left properties.

  CSS Relative Positioning:

  Syntax:

  article {

  position: relative;

  left: 10px;

  }

  Description: Moves the element 10 pixels to the right from its normal position.

  Example:

  Given HTML:

  Content

  Given CSS:

  article {

  position: relative;

  left: 10px;

  }

  The

  element will be positioned 10 pixels to the right of where it would normally appear.

  References:

  MDN Web Docs - position

  W3C CSS Positioned Layout Module Level 3

• Question 4:

  Given the following CSS code:

  body { background-color: white;

  }

  .name { color: black;

  }

  Which portion is the rule?

  A. body { background-color: white; }
  B. background-color: white;
  C. color: black;
  D. .name
  A. body { background-color: white; }

  ---

  Explanation

  In CSS, a rule is composed of a selector and a declaration block. The rule is the entire part that defines how styles should be applied to elements matching the selector.

  CSS Rule Components:

  Selector: Identifies the HTML elements to be styled (e.g., body, .name, #item).

  Declaration Block: Contains one or more declarations, each consisting of a property and a value, enclosed in curly braces {}.

  Example Analysis:

  Option A:

  body {

  background-color: white;

  }

  This is the full rule, consisting of the selector body and the declaration block { background-color: white; }.

  Option B:

  background-color: white;

  This is just a declaration, not a complete rule.

  background-color: white,

  This is an incorrect declaration due to the comma, and not a complete rule.

  Option D:

  color: black

  This is just a declaration, not a complete rule.

  References:

  W3C CSS Syntax and Basic Data Types Module Level 3

  MDN Web Docs - CSS Syntax

• Question 5:

  A developer needs to apply a red font color to the navigation, footer, and the first two of three paragraphs on a website.

  The developer writes the following code:

  Which CSS archives this developer's goal?

  A. Content
  B. Padding
  C. Margin
  D. border
  A. Content

  ---

  Explanation

  To apply a red font color to the navigation, footer, and the first two of three paragraphs on a website, the correct CSS would use the content attribute to achieve the desired styling. However, the term "content" isn't correct in the given context.

  The appropriate answer involves directly specifying styles for these elements using CSS selectors.

  Here's the correct CSS:

  nav, footer, p.standard:nth-of-type(1), p.standard:nth-of-type(2) {

  color: red;

  }

  CSS Selectors: The selectors nav, footer, p.standard:nth-of-type(1), and p.standard:nth-of-type(2) are used to target the specific elements. The nth-of-type pseudo-class is used to select the first and second paragraphs.

  Applying Styles: The color: red; style rule sets the text color to red for the specified elements.

  References:

  MDN Web Docs on CSS Selectors

  W3C CSS Specification on Selectors

• Question 6:

  What is a characteristic of JavaScript code?

  A. It runs inside a web browser
  B. It implements across browsers.
  C. It must be compiled lo work.
  D. It remains hidden from the user.
  A. It runs inside a web browser

  ---

  Explanation

  JavaScript is a scripting language primarily used for creating and controlling dynamic website content. Here are some characteristics:

  Runs Inside a Web Browser: JavaScript code is executed in the web browser, making it possible to create interactive and dynamic web pages.

  Cross-Browser Compatibility: JavaScript is designed to be compatible across different web browsers.

  Interpreted Language: JavaScript is interpreted, meaning it does not need to be compiled before execution.

  Accessible to Users: JavaScript code is not hidden from the user; it can be viewed in the browser's developer tools.

  References:

  MDN Web Docs on JavaScript

  W3C JavaScript Introduction

• Question 7:

  A file named application, Appchache contains the following content:

  CACHE MANIFEST CACHE: default.html stylesheet.css functions.js logo.jpg

  Which attribute should a developer set to application. Appchache so the four files will be cached?

  A. The src attribute of the element
  B. The srcset attribute of the element
  C. The manifest attribute of the element
  D. The href attribute of the element
  C. The manifest attribute of the element

  ---

  Explanation

  To specify a cache manifest file for an HTML document, the manifest attribute must be set in the element. This attribute tells the browser to cache the files listed in the manifest for offline use.

  Cache Manifest:

  Purpose: Specifies resources that should be cached by the browser.

  Attribute: manifest is used in the tag to link the cache manifest file.

  Example:

  Given the manifest file application.appcache:

  CACHE MANIFEST

  CACHE:

  default.html

  stylesheet.css

  functions.js

  logo.jpg

  HTML with the manifest attribute:

  References:

  MDN Web Docs - Offline Web applications

  W3C HTML5 Specification - manifest attribute

• Question 8:

  Which code segment creates a slider field that accepts a numeric value ranging from 1 through 10?

  B

  ---

  Explanation

• Question 9:

  Which 3D transform affects the distance between the z-plane and the user?

  A. matrix3d(n, n, n, n, n, n, n, n, n, n, n, n, n, n, n, n)
  B. perspective(n)
  C. rotate3d(x, y, z, angle)
  D. scaleY(y)
  A. matrix3d(n, n, n, n, n, n, n, n, n, n, n, n, n, n, n, n)

  ---

  Explanation

  The perspective(n) method in CSS is used to affect the distance between the z-plane and the user, effectively changing the perspective depth of a 3D transformed element.

  perspective(n) Method: The perspective function defines how far the element is from the user. It affects the appearance of the 3D transformed element, giving it a sense of depth.

  Usage Example:

  container {

  perspective: 1000px;

  }

  In this example, the perspective is set to 1000 pixels, which defines the distance between the z-plane and the user.

  Properties:

  n: This represents the perspective distance. The lower the value, the more pronounced the perspective effect.

  References:

  MDN Web Docs on perspective

  W3C CSS Transforms Module Level 1

• Question 10:

  Given the following code:

  #item { width: 300px; }

  What does the #item token do?

  A. It specifies a CSS3 property.
  B. It locates an HTML5 element by its ID
  C. It defines a JavaScript function with one parameter.
  D. It creates an XML element.
  B. It locates an HTML5 element by its ID

  ---

  Explanation

  The #item token 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 attribute id="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 matching id attribute.

  Specificity: ID selectors have high specificity, meaning they will override styles from type selectors and