WGU C777 – Quizzes and answers with solutions

WGU C777 – Quizzes and answers with
solutions
HTML5 APIs can be used to:

A) determine how to display HTML elements in your Web pages.

B) call another location in the Web page or a separate Web page when the API is selected.

C) provide a development environment that enables the seamless use of proprietary browser
plug-ins.

D) create apps for mobile devices. - ANSWER create apps for mobile devices.



HTML5 has introduced specific elements to structure Web pages. In which structure element
should you include hypertext menus to access various pages of the Web site?

A) The <article> structure element

B) The <aside> structure element

C) The <nav> structure element

D) The <section> structure element - ANSWER The <nav> structure element



What is an advantage of using HTML5 APIs when designing Web pages for mobile devices?

A) HTML5 APIs use fewer resources than a proprietary browser plug-in does, such as battery
power and CPU memory.

B) HTML5 APIs streamline the application of proprietary browser plug-ins when plug-ins are
included in Web pages designed for mobile devices.

C) HTML5 APIs make Web pages non-responsive to varying user screen sizes, thereby saving
battery power and CPU memory.

D) HTML5 APIs eliminate the need for Cascading Style Sheets, thereby saving battery power and
CPU memory. - ANSWER HTML5 APIs use fewer resources than a proprietary browser plug-in
does, such as battery power and CPU memory.

,Code validation is the process of:

A) creating code that responds to user screen size.

B) accessing another point in a Web page or separate Web page.

C) determining how to display HTML elements in your Web page.

D) checking your code to verify that it complies with the syntax rules for your chosen standard. -
ANSWER checking your code to verify that it complies with the syntax rules for your chosen
standard.



Consider the following HTML code:



<audio>

<source src="audio.mp3" type="audio/mpeg" />

<source src="audio.wav" type="audio/wav" />

<source src="audio.ogg" type="audio/ogg" />

Your browser does not support the HTML5 audio element.

</audio>




Which attribute and value must you add to the <audio> element to incorporate default audio
operations such as Play, Pause, Volume, etc.?

A) controls="controls"

B) controls="default"

C) controls="audio"

D) controls="yes" - ANSWER controls="controls"



Which of the following can be considered a benefit of developing Web pages using the "Web
development trifecta"?

,A) You can create Web pages without the need for page structure elements to define the
document structure.

B) You can create Web pages without the need for hyperlinks.

C) You can create Web pages that no longer need to be validated to an HTML standard in order
to properly render in any browser or device.

D) You can create Web pages that easily adapt to smartphones, tablets, gaming devices and
smart TVs, as well as to traditional computers. - ANSWER You can create Web pages that easily
adapt to smartphones, tablets, gaming devices and smart TVs, as well as to traditional
computers.



For what should you use the controls attribute of the <video> element?

A) To add video controls such as the Play, Pause, Rewind and Volume controls

B) To identify the format, or MIME type, of the video

C) To identify the location and file name of the media resource

D) To identify an image to be displayed until the Play button is clicked or while the video is
downloading - ANSWER To add video controls such as the Play, Pause, Rewind and Volume
controls



You can use a Graphical User Interface (GUI) editor to create Web pages, or you can manually
code them using HTML5 and CSS3. Why is it important to understand what goes on behind the
GUI of a Web editor?

A) You will be able to resize your Web pages to conform to the size of a device's screen.

B) You will be able to troubleshoot code issues when the GUI Web editor fails.

C) You will be able to create apps for mobile Web browsers.

D) You will be able to change the GUI interface to more closely suit your coding habits. -
ANSWER You will be able to troubleshoot code issues when the GUI Web editor fails.



Consider the following HTML code:

, <video width="360" height="270" controls="controls" poster="image.png">

<source src="video.mp4" type="video/mp4" />

<source src="video.webm" type="video/webm" />

<source src="video.ogg" type="video/ogg" />

Your browser does not support the HTML5 video element.

</video>



What attribute prevents the first frame of the video from displaying while the video is
downloading?

A) The type attribute

B) The src attribute

C) The controls attribute

D) The poster attribute - ANSWER The poster attribute



What does the W3C Markup Validation Service use to determine the HTML specification against
which to validate your Web page markup code?

A) The specified DTD in the <nav> section of your HTML page

B) The specified DTD in the <main> section of your HTML page

C) The <!DOCTYPE> declaration in the <header> section of your HTML page

D) The specified DTD in the <!DOCTYPE> declaration on your HTML page - ANSWER The
specified DTD in the <!DOCTYPE> declaration on your HTML page



What attribute should you add to the <audio> element if you want your audio to play over and
over again without stopping?

A) autoplay="autoplay"

B) loop="autoplay"

C) autoplay="loop"