WGU C777 - Post Assessment Selections Exam with 100% Correct Answers 2023

What is the term for a relatively small application developed exclusively for mobile devices? - Correct answer-App What three technologies used toegther provide Web pages that easily adapt to smartphones, tablets, gaming devices and smart TVs, as well as traditional computers? - Correct answer-HTML5, Cascading Style Sheets (CSS) and JavaScript Many markup code validators exist, but the most authoritative is the W3C Markup Validation Service. How does the W3C Markup Validation Service determine to what HTML standard to validate your code? Selena is embedding a video in her HTML5 page. Which attribute should she use to identify the location and file name of the video? - Correct answer-The src attribute You are using the <video> element to embed a video in your HTML5 page. Which attribute should you use if you want to identify an image to be displayed until the Play button is clicked or while the video is downloading? - Correct answer-The poster attribute You want to create Web pages that can easily adapt to serve multimedia content to smartphones, tablets, gaming devices and smart TVs, as well as traditional desktop computers, without the use of plug-ins. What would be best suited for this purpose? - Correct answer-HTML5 APIs Stanley is the senior developer of apps for an organization that is considered to be at the cutting edge of mobile-device technology. What should Stanley use to create apps for mobile devices? - Correct answer-HTML5 APIs You are a novice Web developer, and your mentor has suggested that you familiarize yourself with HTML5 and Cascading Style Sheets (CSS). Being somewhat unfamiliar with CSS, you discover that it is: - Correct answer-a Web design technology that enables you to determine how the HTML elements in your Web pages will display. What are two benefits of CSS? - Correct answer-CSS provides a consistent look and feel to site pages, and simplifies change management issues. Consider the following CSS rule: body {color: #:} Which is the "declaration" portion of this rule? - Correct answer-The portion inside the curly braces Consider the following CSS rule: body {color: #:} Which is the "property" portion of this rule? - Correct answer-The portion that reads "color" Using a linked style sheet, you have modified the look and feel of an HTML page. Because of the concept of inheritance, you notice that: - Correct answer-the rules you applied remain in force unless explicitly overruled using other styles. How can you override a particular style in an HTML element if the HTML document is linked to a style sheet? - Correct answer-By applying an inline CSS style attribute to the element whose style you want to override Consider the following code: CSS file: .right { text-align: right; } HTML file: <h3 class="right">Right-aligned heading level three</h3> <p class="right">Right-aligned paragraph</p> This code shows an example of what? - Correct answer-The class selector Consider the following code: CSS file: #red { color: #FF0000; } HTML file: <p id="red">This paragraph has red text</p> <p>Not affected</p> This code shows an example of what? - Correct answer-The id selector A Web designed who assigns percentage values to elements using the HTML structural elements is using what page-layout method? - Correct answer-Liquid You have created a Web page using the HTML5 <nav> structural element to define a navigation area. Consider the following external style sheet code: nav { float:left; width:165px; background:#d8d8d8 url() top right; height:662px; } Where on the page will the image () appear? - Correct answer-At the top right of the nav section Natalies is using the CSS position property to position block-level elements on her Web pages. Which positioning scheme describes the normal, or default, position of an element within a page? - Correct answer-Static Anatoly is using the CSS position property to position block-level elements on his Web pages. By specifying the "absolute" positioning scheme, Anatoly is ensuring that the element to which he is applying the position property will: - Correct answer-float above the document and can be positioned as needed. Which CSS property defines how text should be handled when it extends beyond its allotted area? - Correct answer-text-overflow What is the purpose of using the CSS3 h3 ~ p selector? - Correct answer-To select all <p> elements that are preceded by an <h3> element Which CSS3 selector can you use to apply a style to the first paragraph of every container in a Web page? - Correct answer-p:first-of-type CSS3 added support for multiple background images. What is the correct syntax for applying two background images to the same element? - Correct answer-backgroundimage: url("images/"), url("images/); What CSS3 property can be used to create rounded corners on an image or other element? - Correct answer-border-radius The CSS3 @font-face rule requires you to specify which two properties? - Correct answer-font-family and src Which CSS3 property can you use to apply a shadow effect to text? - Correct answertext-shadow To change the position of a transformed element in CSS3, you use the: - Correct answer-transform-origin property. Which CSS3 property defines whether or not a transformed element is visible when it is rotated to face away from the viewer? - Correct answer-backface-visibility Which CSS3 property can be used to apply a delay effect when an element changes from one style to another, such as when a user hovers over an element? - Correct answer-transition Consider the following style rules: img { height: 150px; width: 150px; transition: height 3s, width 3s; } img:hover { height: 300px; width: 300px; } Using these styles, what will occur when a user hovers over an image on the page? - Correct answer-The image's height and width will gradually increase to 300 pixels over a 3-second time period. To allow users to change the size of elements on a Web page, such as a <div> element, you can add which CSS3 property? - Correct answer-resize The CSS3 appearance property can be used to make an element: - Correct answer-like like a button A positive Z-index value usually places an element where? - Correct answer-In front of the other elements To position an element behind another element, you can assign a negative value to: - Correct answer-the Z-index property. JavaScript is a scripting language. Scripting languages: - Correct answer-interpret and automate a list of tasks that would otherwise be executed one-at-a-time by a person. Sarah has written several JavaScript scripts for her Web site, but she realizes that implementing the scripts may be complicated by the fact that people may view her pages using different user agents and user agent versions. What should Sarah do to ensure that her scripts will run correctly without knowing what user agent a person will use to view her pages? - Correct answer-Test her scripts in the latest versions of popular browsers Why is it important to test your JavaScript code in as many browsers as possible? - Correct answer-Because different browsers sometimes implement JavaScript differently What is the name for Microsoft's implementation of JavaScript? - Correct answer-JScript Which scripting language is most commonly used within Microsoft's proprietary programs, such as Word and Excel? - Correct answer-VBScript Kate has created a complex script that she wants to attach to multiple HTML file,s but she also wants to add a simple script to only certain sections of one page. What must she doe to apply both scripts? - Correct answer-She must use separate script elements to call the external script file and to embed a separate script. JavaScript makes extensive use of objects. What is the term for the various attributes that can be assigned to an object? - Correct answer-Properties In JavaScript, what is a value? - Correct answer-A specific quality that belongs to the property of an object You have created a new Web site for your company, and you want to add a script so that a "welcome" pop-up box appears to the user as soon as he or she launches the site. Which JavaScript method should you use to display the message? - Correct answer-The alert() method JavaScript has some basic rules for naming variables. For example, the first character of the variable name must be: - Correct answer-a letter, the underscore (_) character or the dollar sign ($). What variable data type should you use if you want to specify numeric values for mathematical operations? - Correct answer-Number Consider the following code: var yearBirth = "1956"; What variable data type does this snippet of code represent? - Correct answer-String What type of JavaScript expression evaluates to true or false? - Correct answer-Logical If the JavaScript operator + is used in an arithmetic expression, what is the result? - Correct answer-The expression treats + as an addition operator and sums the values. Which JavaScript event occurs when the mouse pointer leaves from a link, image or other visible element on the page? - Correct answer-mouseout Which JavaScript object can trigger the onerror event handler? - Correct answer-image What JavaScript event occurs when a page opens in the browser? - Correct answerload What JavaScript method returns a value in the form of a text string supplied by the Web page's user? - Correct answer-prompt() When you define a named function in JavaScript, you begin the function block with the keyword function followed by the function name. The rest of the statements that form the function must be enclosed in: - Correct answer-curly brace {} characters. When you define a named function in JavaScript, you must begin the function block with what? - Correct answer-The keyword function followed by the function name When you load a page containing your JavaScript code into a browser, how can you ensure that your functions will be available before any user event can occur that might call a function? - Correct answer-Define all your functions in the <head> section of your HTML page. What will occur if you define all your functions in the <body> section of your HTML page? - Correct answer-The functions will load when the browser reaches the script point in the page or when the appropriate user event occurs. Consider the following JavaScript code: var v1 = "Blue"; function f() { this.v1 = "Green"; alert(this.v1); } f(); alert(v1); What is the expected result when this script is run in the browser? - Correct answer-Two alert boxes, both displaying the message Green If you declare a variable within a function definition, the only way you can access or change it is from within that function. What term is used to describe this type of variable? - Correct answer-Local variable Consider the following JavaScript code: var myVar = 2; myVar += "3"; What is the value of myVar after execution? - Correct answer-The value will be: 23 Consider the following JavaScript code: