WGU C777 OA Web Development Applications Study Guide
| Objective Assessment Exam Notes & Practice Questions
(Full PDF Revision Pack)
This comprehensive question exam bank is meticulously curated for
students tackling the rigorous WGU C777 Web Development Applications
objective assessment, covering HTML5, CSS3, JavaScript, and responsive
design concepts with zero repetition. Each question is accompanied by
verified, updated answers in bold italics and detailed rationales in bold
italics, ensuring deep conceptual mastery rather than rote memorization
for exams. Designed to mirror the latest 2026/2027 testing trends and
WGU standards, this resource provides an unparalleled advantage for
candidates aiming to pass their assessment on the first attempt.
WGU C777 Comprehensive Test Bank
Question 1
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.
Correct Answer: B) You will be able to troubleshoot code issues
when the GUI Web editor fails.
Explanation: Understanding the underlying code allows developers to
fix issues manually when automated tools fail, ensuring greater
control and flexibility.
Question 2
Consider the following HTML code:
html
<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
Correct Answer: D) The poster attribute
Explanation: The poster attribute specifies an image to display while
the video is downloading or until the user hits the play button,
preventing the first frame from showing prematurely.
Question 3
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
Correct Answer: D) The specified DTD in the <!DOCTYPE> declaration
on your HTML page
Explanation: The <!DOCTYPE> declaration defines the document type
and version of HTML, which the validator uses to determine the rules
for validation.
Question 4
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"
, D) loop="loop"
Correct Answer: D) loop="loop"
Explanation: The loop attribute specifies that the audio will start over
again, every time it is finished.
Question 5
What can you do to ensure that your Web page content is rendered
appropriately regardless of the browser used to render it?
A) Incorporate languages and technologies such as Java, ActiveX,
Microsoft Silverlight and Adobe Flash in your Web pages.
B) Follow W3C standards carefully, choose one standard version of any
given language you use, and apply that standard consistently.
C) Write code in multiple versions of any given language to maximize the
number of browsers in which your pages will render correctly.
D) Avoid using HTML5 APIs in your Web pages.
Correct Answer: B) Follow W3C standards carefully, choose one
standard version of any given language you use, and apply that
standard consistently.
Explanation: Adhering to W3C standards ensures cross-browser
compatibility and consistent rendering across different platforms.
Question 6
How should you embed JavaScript code in an HTML5 document to which
you are also linking an external JavaScript file?
A) You must include the call to the external file and the code you want to
embed in the same script statement.
| Objective Assessment Exam Notes & Practice Questions
(Full PDF Revision Pack)
This comprehensive question exam bank is meticulously curated for
students tackling the rigorous WGU C777 Web Development Applications
objective assessment, covering HTML5, CSS3, JavaScript, and responsive
design concepts with zero repetition. Each question is accompanied by
verified, updated answers in bold italics and detailed rationales in bold
italics, ensuring deep conceptual mastery rather than rote memorization
for exams. Designed to mirror the latest 2026/2027 testing trends and
WGU standards, this resource provides an unparalleled advantage for
candidates aiming to pass their assessment on the first attempt.
WGU C777 Comprehensive Test Bank
Question 1
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.
Correct Answer: B) You will be able to troubleshoot code issues
when the GUI Web editor fails.
Explanation: Understanding the underlying code allows developers to
fix issues manually when automated tools fail, ensuring greater
control and flexibility.
Question 2
Consider the following HTML code:
html
<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
Correct Answer: D) The poster attribute
Explanation: The poster attribute specifies an image to display while
the video is downloading or until the user hits the play button,
preventing the first frame from showing prematurely.
Question 3
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
Correct Answer: D) The specified DTD in the <!DOCTYPE> declaration
on your HTML page
Explanation: The <!DOCTYPE> declaration defines the document type
and version of HTML, which the validator uses to determine the rules
for validation.
Question 4
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"
, D) loop="loop"
Correct Answer: D) loop="loop"
Explanation: The loop attribute specifies that the audio will start over
again, every time it is finished.
Question 5
What can you do to ensure that your Web page content is rendered
appropriately regardless of the browser used to render it?
A) Incorporate languages and technologies such as Java, ActiveX,
Microsoft Silverlight and Adobe Flash in your Web pages.
B) Follow W3C standards carefully, choose one standard version of any
given language you use, and apply that standard consistently.
C) Write code in multiple versions of any given language to maximize the
number of browsers in which your pages will render correctly.
D) Avoid using HTML5 APIs in your Web pages.
Correct Answer: B) Follow W3C standards carefully, choose one
standard version of any given language you use, and apply that
standard consistently.
Explanation: Adhering to W3C standards ensures cross-browser
compatibility and consistent rendering across different platforms.
Question 6
How should you embed JavaScript code in an HTML5 document to which
you are also linking an external JavaScript file?
A) You must include the call to the external file and the code you want to
embed in the same script statement.
