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| Section | Objectives |
|---|---|
| JavaScript Coding | - JavaScript ES6 Development
|
| Application Lifecycle Management | - Application Development Lifecycle
|
| Graphics and Animation | - Canvas and SVG
|
| Layouts | - Responsive and Flexible Layouts
|
| Forms | - HTML5 Forms and Validation
|
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NEW QUESTION # 32
Which two statements correctly describe media queries? Choose 2.
Answer: A,D
Explanation:
Media queries support responsive web design and allow different CSS rules to be applied at different screen sizes, device characteristics, or breakpoints. MDN describes media queries as a CSS mechanism for applying styles depending on media type and device or viewport characteristics, including width, height, resolution, and orientation. This is the foundation of responsive design because a page can adapt its layout for phones, tablets, laptops, and desktop displays without changing the HTML document. Breakpoints are the points where the design changes; MDN identifies them as the points where a media query is introduced to improve layout behavior across viewport sizes. Statement A is not generally correct because media queries are primarily a styling and layout mechanism, not a direct performance optimization. They can sometimes help avoid unsuitable layouts, but performance improvement is not their defining purpose. Statement D is incorrect because media queries are CSS rules; they do not execute or dynamically process JavaScript code. References
/topics: responsive design, CSS media queries, viewport width, breakpoints, adaptive layout rules.
NEW QUESTION # 33
The following output has more text than will fit in the element.
You need to apply CSS to contain the text inside the element ' s border without creating unneeded scrollbars or losing text. Which attribute setting should you use?
Answer: C
Explanation:
The correct setting is overflow: auto;. The CSS overflow property controls how content behaves when it does not fit inside an element's padding box. The requirement has three parts: keep the text inside the element's border, avoid unnecessary scrollbars, and avoid losing text. overflow: hidden clips overflowing content and does not provide a user-visible scrollbar, so text can become inaccessible. overflow: visible allows excess content to render outside the element's box, failing the containment requirement. overflow: scroll makes the element scrollable, but user agents display scrollbars whether or not content is actually overflowing, which violates the requirement to avoid unneeded scrollbars. MDN describes overflow: auto as clipping overflow content at the padding box while allowing it to be scrolled into view, with scrollbars displayed only when content is actually overflowing. This makes auto the precise choice for a controlled text container. References
/topics: CSS overflow, scroll containers, content clipping, layout flow, preserving overflowing content.
NEW QUESTION # 34
Match each stage of Application Lifecycle Management to the task that occurs during that stage.
Move each stage from the list on the left to the correct task on the right.
Note: You will receive partial credit for each correct match.
Answer:
Explanation:
Explanation:
Application Lifecycle Management organizes website creation into ordered stages that move from intent to implementation and long-term support. The Plan stage comes first because it establishes why the website exists, who the audience is, and what goals the application must satisfy. The Design stage converts those requirements into structure, including page layout, navigation, interface organization, and visual arrangement.
The Develop stage is where the website is built by writing HTML markup, CSS styling, JavaScript behavior, and integrating required assets or APIs. The Test stage evaluates whether the completed website functions correctly and is usable according to requirements; this includes checking features, layout behavior, validation, and user workflows. The Deploy stage publishes the finished website to the target hosting or production environment so users can access it. Finally, the Maintain stage occurs after release and includes monitoring, updating, fixing defects, improving compatibility, and keeping content or functionality current. References
/topics: application lifecycle management, planning, design, development, testing, deployment, maintenance.
NEW QUESTION # 35
Which three events are valid for the HTML canvas element? Choose 3.
Answer: A,D,E
Explanation:
The valid selections are mouseup, scroll, and blur. A < canvas > element is represented by HTMLCanvasElement, which inherits from HTMLElement; therefore, it participates in the normal DOM event model for element-based interaction. mouseup is valid because it is fired on an Element when a pointing-device button is released while the pointer is over that element, which is a common canvas interaction pattern for drawing tools, games, drag tracking, and selection behavior. scroll is valid as an element event when an element is scrolled, and the HTML event-handler index lists onscroll for HTML elements. blur is also valid because it fires when an element loses focus; a canvas can participate in focus workflows, particularly when made focusable with attributes such as tabindex. play is excluded in this certification context because it is a media playback event associated with HTMLMediaElement behavior, not canvas graphics interaction. datareceived is not a standard HTML canvas or DOM event. References/topics:
canvas DOM interaction, element event listeners, mouse events, focus events, scroll events.
NEW QUESTION # 36
You create an interface for a touch-enabled application. Some input buttons do not trigger when tapped. What are two possible causes?
Answer: A,D
Explanation:
The correct causes are insufficient input target size and overlapping input areas. Touch interaction depends on hit testing: the browser or platform determines which element occupies the touched screen coordinate and dispatches the event to that element. If a button's active area is too small, the user's finger may visually appear to tap the button while the actual touch coordinate falls outside the actionable target. Microsoft's touch- target guidance recommends touch targets around 7.5 mm square, approximately 40 Γ 40 pixels on a 135 PPI display, to support reliable activation. Overlap is also a valid cause because one element can partially cover or compete with another during hit testing; W3C target-size guidance notes that overlapping areas should not be counted as usable target area unless the overlapping controls perform the same action. Event handlers are not the problem by themselves; they are the standard mechanism for detecting user input. "Touch screen not initialized" is not a normal HTML5 application-level cause. References/topics: touch input, event handling, hit testing, target size, overlapping controls.
NEW QUESTION # 37
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