IT SpecialistのINF-306準備トレントを学習する過程でJpexam、プロセス全体を通してお客様にサービスを提供し、バックオフィススタッフが24時間無料のオンラインコンサルティングを提供します。 INF-306学習準備を購入した後、インストールと使用に問題がある場合は、リモートのオンラインガイダンスを提供する専任スタッフがいます。 また、HTML5 Application Development質問の内容についてご質問がある場合は、お気軽にメールでお問い合わせください。HTML5 Application Development最初にお答えできるように最善を尽くします。 すべての声について、スタッフは忍耐強く耳を傾けます。 使用中に、INF-306テスト資料に提案を提案することもできます。フィードバックに最も注意を払います。
| Section | Objectives |
|---|---|
| Topic 1: Layouts | - Responsive and Flexible Layouts
|
| Topic 2: Application Lifecycle Management | - Application Development Lifecycle
|
| Topic 3: Graphics and Animation | - Canvas and SVG
|
| Topic 4: JavaScript Coding | - JavaScript ES6 Development
|
| Topic 5: Forms | - HTML5 Forms and Validation
|
ほとんどの人は勉強中にコンピューターを使用することを好むかもしれませんが、IT Specialistコンピューターで勉強することは目に害を及ぼすと考えているため、多くの人が紙の購入を学びたいと認めている必要があります。Jpexam INF-306テスト問題には、顧客のニーズを満たすために印刷をサポートする機能があります。 正常にダウンロードしたら、INF-306試験問題をHTML5 Application Development論文に印刷できます。 目を保護するだけでなく、メモをとるのに非常に便利です。 INF-306試験準備を気に入っていただけると信じています。
質問 # 56
Review the markup segment. Which entry will validate successfully according to the required pattern?
正解：C
解説：
The valid entry is A, assuming the OCR-corrupted option represents the intended secret-code format: four letters, a hyphen, two digits, a hyphen, four digits, a hyphen, and four letters. The HTML pattern attribute defines a regular expression that an input value must satisfy during constraint validation. MDN specifies that pattern is used to define a regular expression the input value must match. In the intended pattern, the first group must contain exactly four alphabetic characters, the second group exactly two numeric digits, the third group exactly four numeric digits, and the final group exactly four alphabetic characters. Option A satisfies that structure: kukX is four letters, 04 is two digits, 4938 is four digits, and WJDF is four letters. Option B fails because the final group Uhj6 contains a digit. Option C fails because the first group includes a digit and the digit grouping/hyphen structure is wrong. Option D fails because 23h contains a letter where only digits are allowed. References/topics: HTML5 form validation, pattern attribute, regular-expression validation, text input constraints.
質問 # 57
You need to use CSS to create the layout shown:
Review the layout shown on the left.
Complete the markup 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:
First blank: display: grid;
Second blank: grid-template-columns: auto auto auto auto;
Third blank: grid-gap: 10px;
The layout shown is a CSS Grid layout with eight items arranged into four equal-width columns and two rows. The first required declaration is display: grid;, which turns the .grid-container element into a grid container. The second declaration is grid-template-columns: auto auto auto auto;, which defines four columns, matching the four visible boxes in each row: Mickey, Minnie, Luna, and George on the first row, then Bilbo, Bella, Madeline, and Groucho on the second row. The third declaration is grid-gap: 10px;, which creates spacing between the grid cells, matching the visible blue gaps around each item. The background-color:
#336699; creates the blue container background, while padding: 10px; adds space around the outer edge of the grid. The child rule .grid-container > div styles each grid item with a light background, centered text, padding, and larger font size.
質問 # 58
You need to ensure that the value of an input element is a valid 10-digit phone number with no symbols. The input element should initially display all zeroes, but that value should never be stored with the form.
Complete the markup by selecting the correct option from each drop-down list.
正解：
解説：
Explanation:
< input id= " phone "
pattern= " [0-9]{10} "
placeholder= " 0000000000 " >
The correct first attribute is pattern because the requirement is to validate the entered value against a specific format: exactly ten numeric digits and no symbols. The regular expression [0-9]{10} means that only digits from 0 through 9 are allowed, and exactly ten of them must be entered. This prevents values such as 123-456-
7890, (123)4567890, or 123 456 7890 because those contain symbols or spaces. The correct second attribute is placeholder, not value, because the input should initially display all zeroes but that displayed text must not be submitted or stored with the form. A placeholder is hint text shown when the field is empty; it disappears when the user enters real data and is not submitted as the control's value. By contrast, value= " 0000000000 " would actually prepopulate the input and could be submitted if the user did not change it. The required option is not selected because the question focuses on format validation and display hint behavior, not mandatory completion. References/topics: HTML5 form validation, pattern, regular expressions, placeholder, input constraint validation.
質問 # 59
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：A、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 # 60
Review the following markup segment:
< form action= " process.js " method= " get " >
< label for= " secretcode " > Secret Code < /label >
< input type= " text " name= " secretcode "
pattern= " [a-zA-Z]{4}-[0-9] {2}-[0-9]{4}-[a-zA-Z] {4} "
placeholder= " secretcode " >
< input type= " submit " value= " Submit " >
< /form >
Which entry will validate successfully according to the required pattern?
正解：B
解説：
The correct answer is D because the pattern attribute requires the exact structure defined by the regular expression [a-zA-Z]{4}-[0-9] {2}-[0-9]{4}-[a-zA-Z] {4}. The first group, [a-zA-Z]{4}, requires exactly four alphabetic characters. The second group, [0-9] {2}, requires exactly two numeric digits. The third group, [0-9]
{4}, requires exactly four numeric digits. The final group, [a-zA-Z] {4}, requires exactly four alphabetic characters. Hyphens must appear between each group. Option D, kukX-34-4938-WJDF, satisfies every part:
kukX is four letters, 34 is two digits, 4938 is four digits, and WJDF is four letters. Option A fails because Uhj6 contains a digit in the final letter-only group. Option B fails because y7Ts contains a digit in the first group and A3 is not two digits. Option C fails because 23h contains a letter and breaks the two-digit group.
References/topics: HTML5 input validation, pattern attribute, regular expressions, form constraint validation.
質問 # 61
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INF-306試験はIT Specialistのひとつの認証試験でIT業界でとても歓迎があって、ますます多くの人がINF-306「HTML5 Application Development」認証試験に申し込んですがその認証試験が簡単に合格できません。準備することが時間と労力がかかります。でも、Jpexamは君の多くの貴重な時間とエネルギーを節約することを助けることができます。
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