当社のウェブサイトIt-Passportsの購入手続きは安全です。 ダウンロード、インストール、および使用は安全であり、製品にウイルスがないことを保証します。 最高のサービスと最高のINF-306試験トレントを提供し、製品の品質が良好であることを保証します。 電子的なINF-306ガイドトレントがウイルスを増幅するのではないかと心配する人が多く、ウイルスを誤って報告する専門家ではないアンチウイルスソフトウェアを使用する人もいます。 サービスとINF-306学習教材はどちらも優れており、当社IT SpecialistのHTML5 Application Development製品とウェブサイトはウイルスがなくても絶対に安全であると考えてください。
| Section | Objectives |
|---|---|
| Topic 1: Graphics and Animation | - Canvas and SVG
|
| Topic 2: Application Lifecycle Management | - Application Development Lifecycle
|
| Topic 3: Forms | - HTML5 Forms and Validation
|
| Topic 4: Layouts | - Responsive and Flexible Layouts
|
| Topic 5: JavaScript Coding | - JavaScript ES6 Development
|
夢を叶えたいなら、専門的なトレーニングだけが必要です。It-PassportsはIT SpecialistのINF-306試験トレーニング資料を提供する専門的なサイトです。It-Passportsの IT SpecialistのINF-306試験トレーニング資料は高度に認証されたIT領域の専門家の経験と創造を含めているものです。あなたはIt-Passportsの学習教材を購入した後、私たちは一年間で無料更新サービスを提供することができます。
質問 # 34
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 # 35
You write the following JavaScript code. Line numbers are included for reference only.
01 < script >
02
03 beststudent = new Student( " David " , " Hamilton " );
04 document.write(beststudent.fullname + " is registered. " );
05 < /script >
You need to write a function that will initialize and encapsulate the member variable fullname.
Which code fragment could you insert at line 02 to achieve this goal?
Note: Each correct answer presents a complete solution.
正解：C
解説：
The correct answer is A because the code at line 03 creates an object by calling a constructor function with the new keyword. A constructor function must be declared with the same identifier used in the new Student( " David " , " Hamilton " ) expression. Inside the constructor, instance members should be assigned through this, because this refers to the newly created object. Option A correctly initializes this.firstname, this.lastname, and this.fullname, so beststudent.fullname is available at line 04 and evaluates to " David Hamilton " . Option B is invalid JavaScript syntax because var student(firstName, lastName) is not a valid function declaration. Option C is also invalid syntax for the same reason: var Student(firstname, lastname) cannot declare a constructor.
Option D uses a valid function declaration, but it assigns firstname, lastname, and fullname without this, which creates or references non-encapsulated variables rather than properties of the constructed object.
References/topics: JavaScript constructor functions, new keyword, object instance properties, this, custom classes.
質問 # 36
You are creating a dietary request form for an upcoming conference. The form must include the following elements:
* The title " Conference Registration Form "
* A Name input field for the attendee ' s name
* A list of food options the attendee can select by using the mouse or typing Complete the code by moving the appropriate code segments from the list on the left to the correct locations on the right. You may use each code segment once, more than once, or not at all.
Note: You will receive partial credit for each correct response.
正解：
解説：
Explanation:
< !DOCTYPE html >
< html >
< body >
< h1 > The Fitness World Around Us - Spring Conference < /h1 >
< form action= " process.php " method= " post " >
< legend > Conference Registration Form < /legend >
< p > < label for= " name " > Name: < /label >
< input type= " text " id= " name " size= " 30 " maxlength= " 30 " value= " " / > < /p >
< input id= " food " placeholder= " Cuisine " list= " food-choice " size= " 40 " / > < br >
< datalist id= " food-choice " >
< option value= " Vegetarian " > Vegetarian < /option >
< option value= " Traditional " > Traditional < /option >
< option value= " Surprise Me " selected > Surprise Me < /option >
< /datalist >
< input type= " submit " >
< /form >
< /body >
< /html >
The correct solution must satisfy all three stated form requirements. The title " Conference Registration Form
" is supplied by the < legend > element in the first valid code segment. That same segment also includes the required attendee name field by using a < label > associated with an < input type= " text " > . The for= " name
" and id= " name " relationship makes the label programmatically connected to the input, which is the correct HTML form-accessibility pattern. For the food options, the correct choice is the segment that uses an < input
> element with a list attribute connected to a < datalist > element. This is required because the attendee must be able to select an option by using the mouse or type a value manually. A < select > element provides a fixed dropdown list, and radio buttons provide fixed clickable choices, but neither is the best match for a type-ahead list requirement. The < datalist > element supplies predefined options such as Vegetarian, Traditional, and Surprise Me while still allowing keyboard entry through the associated input field. References/topics: HTML5 forms, labels, text inputs, datalist, form usability, selectable and typed input options.
質問 # 37
Which two statements correctly describe media queries? Choose 2.
正解：C、D
解説：
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.
質問 # 38
You need to call a function named process when a user clicks a button.
Complete the code by selecting the correct option from each drop-down list.
Note: You will receive partial credit for each correct selection.
正解：
解説：
Explanation:
< button onclick= " process() " > Process < /button >
< script >
function process()
{
}
< /script >
The button must use the onclick attribute because the required action occurs when the user clicks the button.
The plain word click is an event name used in JavaScript event listeners, but it is not the correct inline HTML event-handler attribute. The value of the onclick attribute must be process() because the function must actually be invoked when the click event occurs. Using process alone only references the function name and does not call it in this inline markup context. this.process would attempt to reference a property on the current element, and javascript:process is not the correct handler expression. Inside the < script > block, the correct function declaration is function process(). This defines the named function that the button's onclick attribute calls. The final structure therefore connects the button event directly to the script function: when the user clicks Process, the browser runs process().
質問 # 39
......
It-Passportsの問題集はIT専門家がIT SpecialistのINF-306「HTML5 Application Development」認証試験について自分の知識と経験を利用して研究したものでございます。It-Passportsの問題集は真実試験の問題にとても似ていて、弊社のチームは自分の商品が自信を持っています。It-Passportsが提供した商品をご利用してください。もし失敗したら、全額で返金を保証いたします。
INF-306試験攻略: https://www.it-passports.com/INF-306.html