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| Section | Weight | Objectives |
|---|---|---|
| Graphics and Animation | 25% | - Styling and transformations
|
| Layouts | 20% | - Responsive design
|
| JavaScript Coding | 15% | - APIs and state management
|
| Forms | 20% | - Form elements and markup
|
| Application Lifecycle Management | 20% | - Stages of application lifecycle
|
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質問 # 28
You need to contain overflowing text inside the element ' s border without creating unneeded scrollbars or losing text. Which attribute setting should you use?
正解：D
解説：
The correct setting is overflow: auto;. The requirement is precise: the text must remain inside the element's border, must not be lost, and scrollbars should not appear unless they are needed. overflow: auto satisfies all three requirements because it clips overflowing content to the element's box and creates scrollbars only when the content actually exceeds the available space. This preserves access to all text while avoiding unnecessary horizontal or vertical scrollbars when the content fits. overflow: hidden is incorrect because it clips the overflowing text and provides no scrolling mechanism, meaning some content may become inaccessible.
overflow: visible is incorrect because the extra text can flow outside the element boundary, violating the requirement to keep content inside the border. overflow: scroll is close but not optimal because it forces scrollbars even when they are not required, which directly conflicts with the instruction to avoid unneeded scrollbars. References/topics: CSS overflow, scroll containers, text containment, content clipping, layout flow.
質問 # 29
What is the effect of applying the CSS float: right property to an image?
正解：C
解説：
The correct answer is A. Applying float: right to an image removes the image from the normal inline flow and moves it to the right side of its containing block. Inline content, such as text, is then allowed to flow around the floated image. Because the image is anchored on the right, available text space is primarily on the left side of the image, and the text can continue above, beside, and below the floated region according to the surrounding layout. This is the classic use case for floating images within article-style content, where text wraps around a visual element rather than forcing the image to occupy an entire line. Option B is incomplete because it omits the important left-side wrapping behavior. Option C describes the opposite direction: an image floated left with text appearing to its right. Option D also describes float: left, not float: right.
References/topics: CSS float, floated images, text wrapping, normal flow, content positioning.
質問 # 30
Which two background graphics will automatically adjust to different screen sizes? Choose 2.
Note: You will receive partial credit for each correct selection.
正解：C、D
解説：
The correct answers are A and C because background-size: contain and background-size: cover are the CSS values that scale a background image in response to the size of the element or viewport. contain scales the background image as large as possible while preserving the entire image inside the background area. This prevents cropping and maintains the image's aspect ratio, although empty space may appear if the container and image proportions differ. cover also preserves the aspect ratio, but scales the image until the entire background area is filled; this may crop part of the image, but it prevents empty space. Both values are commonly used in responsive design because the image automatically recalculates its rendered size as the page or element changes dimensions. initial resets the property to its default behavior and does not intentionally create responsive scaling. auto uses the image's intrinsic dimensions or proportional automatic sizing, so it does not reliably adjust the graphic to different screen sizes in the way required. References
/topics: responsive design, CSS background images, background-size, contain, cover, viewport-based scaling.
質問 # 31
You need to identify the form elements.
Move the appropriate semantic elements from the list on the left to the correct locations on the right.
Note: You will receive partial credit for each correct response.
正解：
解説：
Explanation:
Club Points indicator # < meter >
Order Status group title # < legend >
Choose delivery frequency options # < datalist >
Shipping Information group box # < fieldset >
Displayed shipping information # < output >
The correct semantic elements are selected according to the role each visible form component performs. The Club Points visual indicator represents a scalar measurement within a known range, so it corresponds to < meter > . The bordered Order Status section is a grouped form region, and the caption displayed on the border is a < legend > , which labels a fieldset-style group. The delivery frequency control shows an editable input with selectable predefined values, which is the purpose of < datalist > : it supplies suggested options for an associated input without forcing the user to choose only from the list. The Shipping Information section is visually and semantically a grouped set of related form information, so the surrounding grouping element is < fieldset > . The displayed shipping address is generated or presented as result-style information rather than typed directly in that location, which matches < output > . fieldset groups related controls, legend labels that group, meter displays a bounded measurement, datalist provides input suggestions, and output displays calculated or resulting information.
質問 # 32
You need to display the following user interface:
A text input field that displays a selectable suggestion list containing:
Motorcycle
Truck
Boat
Car
Bicycle
正解：
解説：
Explanation:
The correct markup uses the HTML5 < datalist > element because the interface shows a text input with a drop- down list of suggested values. The < input > element has list= " vehicles " , which means it must be connected to a < datalist > whose id value is exactly vehicles. This relationship is essential: the list attribute on the input references the id of the datalist that supplies the available options. Each < option > element inside the datalist defines one suggested value: Motorcycle, Truck, Boat, Car, and Bicycle. Unlike a traditional < select > element, a datalist does not restrict the user only to the listed choices; the user can either select an option with the mouse or type directly into the input field. That behavior matches the displayed interface, where the control appears as an editable text box with suggestions. The final closing tag must be < /datalist > because the option elements belong to the datalist container. References/topics: HTML5 forms, < input list > , < datalist > , option elements, selectable typed input.
質問 # 33
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