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Web-Development-Applications認證，Web-Development-Applications考古題分享

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>> Web-Development-Applications認證 <<

Web-Development-Applications考古題分享，Web-Development-Applications考試指南

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最新的 Courses and Certificates Web-Development-Applications 免費考試真題 (Q20-Q25):

問題 #20
What is an advantage that mobile websites have over mobile apps when it comes to development?

A. Cross-platform portability
B. Ability to use all device capabilities
C. Full control of the user interface
D. Code that runs locally

答案：A

解題說明：
> "Mobile websites are accessible through browsers and are built using standard technologies (HTML, CSS, JavaScript). As a result, they are inherently cross-platform and do not require separate versions for iOS, Android, etc."
>
> In contrast, mobile apps are platform-specific and need to be built and maintained separately.
References:
* Web Application Development Best Practices
* MDN Web Docs: Mobile Web vs. Native Apps
---

問題 #21
What should a developer correct before revalidating after a code validator reports multiple errors in code?

A. Only CSS errors
B. The first reported error
C. The last reported error
D. Only JavaScript errors

答案：B

解題說明：
When using a code validator to check your HTML, CSS, or JavaScript code, it's essential to address errors in a systematic manner. The correct approach is to correct the first reported error before revalidating. This method is recommended because often, the first error can cause a cascade of subsequent errors or warnings.
By fixing the first error, you may automatically resolve other errors that were reported later.
* Reasoning:
* Cascading Errors: The first error in the code might lead to multiple subsequent errors. Fixing it can sometimes resolve those cascading errors, reducing the overall number of errors in the next validation.
* Logical Flow: Addressing errors in the order they appear maintains a logical flow and makes debugging more manageable.
* Steps to Follow:
* Step 1: Run the code through the validator.
* Step 2: Identify the first reported error.
* Step 3: Correct the first error.
* Step 4: Revalidate the code to check if the error count has reduced or if new errors appear.
* Step 5: Repeat the process until all errors are resolved.
* References:
* W3C Markup Validation Service
* MDN Web Docs - Debugging HTML
* W3C CSS Validation Service

問題 #22
Given the following CSS code:

How many seconds elapse before the font-size property begins to increase when a user hovers a mouse pointer over the delay element?

A. 0
B. 1
C. 2
D. 3

答案：B

解題說明：
The CSS transition-delay property specifies how long to wait before starting a property transition. In the given CSS code, the transition-delay is set to 2s.
* CSS Transition Properties:
* transition-property: Specifies the CSS property to which the transition is applied (font-size in this case).
* transition-duration: Specifies how long the transition takes (4s).
* transition-delay: Specifies the delay before the transition starts (2s).
Example:
* Given HTML:
<div id="delay">Hover over me</div>
* Given CSS:
#delay {
font-size: 14px;
transition-property: font-size;
transition-duration: 4s;
transition-delay: 2s;
}
#delay:hover {
font-size: 36px;
}
Explanation: When a user hovers over the element with id="delay", it will wait for 2 seconds before the transition effect on font-size starts.
References:
* MDN Web Docs - transition-delay
* W3C CSS Transitions

問題 #23
A web page has the following CSS code:

Which selector should a developer use to invoke the CSS?

A. class
B. id
C. Style
D. Attribute

答案：B

解題說明：
To invoke the CSS provided, an ID selector is used. In CSS, the ID selector is used to style the element with the specific id attribute.
* CSS ID Selector: The syntax for the ID selector is #id, where id is the id attribute value of the HTML element.
* Usage Example:
#black {
color: black;
}
This CSS rule will apply the color: black; style to the element with id="black".
* Example in HTML:
<div id="black">This text will be black.</div>
References:
* MDN Web Docs on ID Selectors
* W3C CSS Specification on Selectors

問題 #24
What is the process for JavaScript from validation?

A. User input is sent to the server after the form is completed tor validation.
B. Form fields are validated as me user inputs data after form data is sent to the server.
C. Form fields are validated after the form is submitted but before form data is sent to the server
D. User input is sent to the server as fields are completed for validation.

答案：C

解題說明：
JavaScript form validation typically occurs after the form is submitted but before the form data is sent to the server. This allows the client-side script to check the input data and prevent the form from being submitted if the data is invalid.
* Client-Side Validation:
* Before Form Submission: JavaScript validates the form fields after the user attempts to submit the form.
* Prevent Default Submission: If the validation fails, JavaScript can prevent the form from being submitted and display appropriate error messages.
* Usage Example:
document.getElementById("myForm").addEventListener("submit", function(event) { var isValid = true;
// Perform validation checks
if (!isValid) {
event.preventDefault(); // Prevent form submission
alert("Please correct the errors.");
}
});
This example prevents form submission if the validation fails.
:
MDN Web Docs on Form Validation
W3C HTML Specification on Form Submission

問題 #25
......

Web-Development-Applications 是一個占有一定比重的認證科目。由於人數太少，加上需求太大，導致擁有 Web-Development-Applications 認證的人成為薪酬最高的資訊技術專業認證人員。由於技能是本身擁有的，加上在全球範圍內的幾乎所有國家都有類似需求。所以，WGU 的 Web-Development-Applications 認證為網路工程師打開了通往全球各地的大門。如果您通過了Web-Development-Applications 的考試，將證明你的專業技能和貢獻，展示你的知識與能力。如果你被認證為一個 Web-Development-Applications 網路公司的專家，你就會成為這個領域中最有知識的專家之一。

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