CIW UCertify - Advanced HTML5 & CSS3 Specialist - Review

What CSS3 property can be used to create rounded corners on an image or other element?

border-radius

Which statement is true about JavaScript?

JavaScript is widely used for client-side and server-side scripts

What is another common name for the technique of requesting and reusing data using the JavaScript XMLHttpRequest object with HTML pages and CSS?

AJAX

Which choice correctly describes two benefits of Cascading Style Sheets (CSS)?

CSS provides a consistent look and feel to site pages, and simplifies change management issues.

You are creating an HTML5 form. You want the form to be able to automatically suggest and complete input as the user enters the information into fields. Which code will correctly add this feature?

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?

The class selector

Where can you find information about the latest status of HTML5 and CSS3 browser support?

On third-party Web sites such as CanIUse.com and Wufoo.com

You want to create a simple click-to-call link on your mobile Web page, so that users can easily make a phone call with one click. Which line of code will add this feature?

Call Us Now

In an article about using inline validation in HTML5 forms, Maik reads that users typically find these forms to be easier and faster to complete. What feature on inline validation would cause this result from form users?

Users can resolve errors as they go along and submit the completed, validated form just once.

Which CSS property defines how text should be handled when it extends beyond its allotted area?

text-overflow

Which HTML5 attribute can help users input valid form data in the <textarea\> element by providing the user with a hint identifying the expected input in the field?

The placeholder attribute

Which statement about modern Web design is true?

The design of mobile Web pages requires some differences from pages designed for desktop computers.

Which CSS3 selector can you use to apply a style to the first paragraph of every container in a Web page?

p:first-of-type

To allow several files to be selected at once with the File API, use the:

multiple attribute

What is the purpose of using the CSS3 h3 ~ p selector?

To select all <p\> elements that are preceded by an <h3\> element

Which JavaScript object can trigger the onerror event handler?

image

What is one advantage to using JavaScript instead of HTML5 to validate an input field that is requesting the user to input an e-mail address?

It offers more browser support.

Consider the following code:

\
var myFloatingPoint = 34.75;

alert(/\* your selection here \*/);

\
Considering the alert() function requires an argument of type string, which code is necessary for the alert to display the value of the myFloatingPoint variable in the resulting alert box?

myFloatingPoint

What variable data type should you use if you want to specify numeric values for mathematical operations?

Number

It is always wise to review your JavaScript code manually, but manual reviews do not always catch errors, and with long programs they can be time-consuming. To save time, you can use various debugging tools. How are these tools helpful?

They help you detect and locate errors in your code.

Which CSS property can create rectangles with rounded corners around text?

border-radius

Consider the following code:

\
<script>

var v1 = "Blue";

function f ()

{

this.v1 = "Green";

alert (this.v1);

}

f();

alert (v1);

</script>

\
What is the expected result when this script is run in the browser?

Two alert boxes, both displaying the message Green

If the JavaScript operator + is used in an arithmetic expression, what is the result?

The expression treats + as an addition operator and sums the values.

You are creating a Web-based mapping application. What information can you obtain by using the HTML5 Geolocation API in your application?

The latitude and longitude of a user's device

JavaScript is a scripting language. Scripting languages:

interpret and automate a list of tasks that would otherwise be executed one-at-a-time by a person.

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:

float above the document and can be positioned as needed.

A Web designer who assigns percentage values to elements using the HTML structural elements is using what page-layout method?

Liquid

The DOM is a standard that enables you to manipulate HTML elements and attributes in a Web document. What do you use to work with the DOM?

A scripting language such as JavaScript

Your form has a field for users to enter an e-mail address. You use <input type\="email"\> to create the field. What other HTML5 attributes could you use with the "email" input type to most effectively ensure that users do not inadvertently enter an extra space, an invalid format or an irrelevant answer?

pattern, placeholder, required

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?

It reads the <!DOCTYPE\> declaration on an HTML page and validates according to the specified DTD.

To change the position of a transformed element in CSS3, you use the:

transform-origin property.

What is the default height and width of the <canvas\> element?

150 (h) x 300 (w)

Which method of form input validation is sometimes referred to as "pogo-sticking" and may lead to users becoming frustrated or impatient with the form?

Requiring users to click Submit before validation occurs

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?

Define all your functions in the <head\> section of your HTML page.

Which of the following methods returns a value in the form of a text string?

prompt()

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?

The image's height and width will gradually increase to 300 pixels over a 3-second time period.

Which of the following statements about validating markup is true?

If a code validator finds an error, the remaining code on the page may fail validation, even if the remaining code is actually valid.

The CSS3 @font-face rule requires you to specify which two properties?

font-family and src

Which DOM method is used by the <canvas\> element to return a context object, which provides properties and methods that can be used to draw and manipulate images on the canvas?

getContext()

Which of the following statements about Cascading Style Sheets (CSS) is true?

CSS commands contain formatting instructions that determine how to display HTML elements in Web pages.

Which HTML element allows you to specify a pre-defined list of options for an input element?

datalist

Stanley is the senior developer of apps for an organization that is considered to be at the cutting edge of mobile-device technology. Which of the following should Stanley use to create apps for mobile devices?

HTML5 APIs

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?

The id selector

You are creating a Web form that will use JavaScript to calculate mortgage payments. What HTML5 element should you use to display the results of the calculation?

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?

The alert() method

What does the HTML5 autofocus attribute do when applied to the HTML <select\> element?

Activates the drop-down selection list for input when the page loads

Consider the following Cascading Style Sheets (CSS) rule:

\
body {color: #008080;}

\
Which is the "property" portion of this rule?

The portion that reads "color"

Which statement about global variables is true?

If you declare a global variable, you can access its value from any function or script block on that page.

What three technologies used together provide Web pages that easily adapt to smartphones, tablets, gaming devices and smart TVs, as well as to traditional computers?

HTML5, Cascading Style Sheets (CSS) and JavaScript

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?

Local variable

Which statement about the Document Object Model (DOM) is true?

The DOM provides a standard interface so you do not need to develop multiple versions of your scripts tailored for each browser

Vivi is creating a Web page that will allow her employees to upload their timesheets to the company intranet. What HTML5 API can she use to restrict uploads to a specific file type?

The File API

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?

Test her scripts in the latest versions of popular browsers

Each time a user logs on to a service, shops or conducts online business, he or she is filling information into:

an HTML form.

To position an element behind another element, you can assign a negative value to:

the Z-index property.

Which of the following is a JavaScript event that occurs when a page opens in the browser?

load

Consider the following code:

\
<input list="continents" name="continent"> <datalist id="continents">

<option value="North America">

<option value="South America">

<option value="Europe">

<option value="Asia">

<option value="Africa">

<option value="Australia">

<option value="Antarctica">

</datalist>

\
Which two attributes' values must match each other in order to bind the <datalist> element with the <input> element?

The list attribute and the id attribute

What is the purpose of using the <output\> element in a Web form?

It displays the result of a calculation in the form.

Which CSS3 property defines whether or not a transformed element is visible when it is rotated to face away from the viewer?

backface-visibility

What is the term for a relatively small application developed exclusively for mobile devices?

App

Which example is a valid variable name in JavaScript?

_firstName

You want to create Web pages that can easily adapt to and serve multimedia content to smartphones, tablets, gaming devices and smart TVs, as well as to traditional desktop computers, without the use of plug-ins. Which of the following would be best suited for this purpose?

HTML5 APIs

Natalie 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?

Static

What is the name for Microsoft's implementation of JavaScript?

Script

When you define a named function in JavaScript, you must begin the function block with what?

The keyword function followed by the function name

What type of JavaScript expression evaluates to true or false?

Logical

JavaScript makes extensive use of objects. What is the term for the various attributes that can be assigned to an object?

Properties

CSS3 added support for multiple background images. Which declaration uses the correct syntax for applying two background images to the same element?

background-image: url("images/logo.png"), url("images/pattern.png");

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:

curly brace { } characters.

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(background.gif) top right;

height:662px;

}

\
Where on the page will the image (background.gif) appear?

At the top right of the nav section

Responsive Web Design uses three main techniques to develop responsive pages. Which technique allows you to specify CSS styles based on viewport size?

Media queries

Selena is embedding a video in her HTML5 page. Which attribute should she use to identify the location and file name of the video?

The src attribute

The CSS3 appearance property can be used to make an element:

look like a button.

To allow users to change the size of elements on a Web page, such as a <div\> element, you can add which CSS3 property

resize

Kate has created a complex script that she wants to attach to multiple HTML files, but she also wants to add a simple script to only certain sections of one page. What must she do to apply both scripts?

She must use separate <script\> elements to call the external script file and to embed a separate script.

If the JavaScript operator + is used in an arithmetic expression, what is the result?

The expression treats + as an addition operator and sums the values.

Which of the following statements about HTML5 is true?

HTML5 does not require third-party plug-ins for video and audio content.

What Geolocation API method is used to retrieve the current geographic location of the user?

getCurrentPosition()