IT Specialist HTML5 Application Development - INF-306 模擬練習

Which two application features should you implement by using session storage? Choose 2.

正解: B,D
解説: (PassTest メンバーにのみ表示されます)
Review the grid container requirements and mockup on the left. Which markup should you use to define the grid container?

正解: A
解説: (PassTest メンバーにのみ表示されます)
You create an interface for a touch-enabled application. Some input buttons do not trigger when tapped. What are two possible causes?

正解: A,C
You need to create the layout shown, which defines five content areas:
* Logo and page title
* Menu
* Main content area
* Additional content area
* Copyright and contact information
You define the following classes:

正解: A
解説: (PassTest メンバーにのみ表示されます)
Which two code segments declare a JavaScript method? Choose 2.

正解: C,D
解説: (PassTest メンバーにのみ表示されます)
A local photographer asks you to add filters as shown to the images in their photo gallery so that the images are not recognizable until authorized users log in.
Example of original and filtered images:
* Original image: full-color flower image
* Filtered image: blurred grayscale image

Analyze the images on the left.
Construct a CSS selector that will apply the appropriate filters to the images to meet the requirements.
Complete the markup by moving the appropriate HTML tags from the list on the left to the correct locations on the right. You may use each HTML tag once, more than once, or not at all.
Note: There is more than one correct markup. You will receive credit for any correct markup completion.
正解:

Explanation:
First blank: img
Second blank: filter:
Third blank: grayscale(100%)
Fourth blank: blur(8px)
The correct CSS selector is img because the requirement applies the visual effect to gallery images. The correct property is filter:, not transform:, because CSS filters modify the rendered appearance of an element using image-processing effects such as blur, grayscale, opacity, brightness, contrast, and shadows. The filtered sample appears blurred and colorless, so the appropriate filter functions are grayscale(100%) and blur (8px). grayscale(100%) removes all color from the image, converting it to a black-and-white rendering. blur (8px) obscures visual details, making the image difficult to recognize until the protected or authorized state changes the styling. The filter keyword without a colon is not a valid CSS declaration in this context.
brightness(40%) and opacity(50%) could further obscure an image, but they are not required to reproduce the shown filtered result. The final declaration is therefore filter: grayscale(100%) blur(8px);.
You are given the design for an app. The project manager asks you to outline the steps you must take to release and maintain the app.
Move each step from the list on the left to its correct sequence in the application lifecycle on the right.
Note: You will receive partial credit for each correct response.
正解:

Explanation:
Determine requirements # Develop code # Test the app
#
Monitor performance # Deploy the app
The correct application lifecycle sequence begins with Determine requirements because the team must first define what the app must accomplish, who will use it, and which functional and technical expectations must be satisfied. Since the question states that the design is already provided, the next implementation step is Develop code, where the HTML, CSS, JavaScript, assets, APIs, and app logic are created according to the approved design and requirements. After development, the app must be validated through Test the app.
Testing confirms that the app works correctly, meets requirements, handles user input properly, and does not contain functional defects that would block release. Once testing is complete, the app can be released through Deploy the app, which publishes it to the target environment or makes it available to users. The final operational stage is Monitor performance, where the released app is observed, maintained, updated, and improved based on performance, reliability, defects, and user behavior. References/topics: application lifecycle management, requirements, development, testing, deployment, maintenance.