あなたより優れる人は存在している理由は彼らはあなたの遊び時間を効率的に使用できることです。どのようにすばらしい人になれますか？ここで、あなたに我々のIT Specialist INF-306試験問題集をお勧めください。弊社ShikenPASSのINF-306試験問題集を介して、速く試験に合格してINF-306試験資格認定書を受け入れる一方で、他の人が知らない知識を勉強して優れる人になることに近くなります。
| Section | Objectives |
|---|---|
| CSS Styling | - Selectors and styling rules
|
| Web Application Development Concepts | - Client-side storage
|
| HTML Fundamentals | - Forms and input elements
|
| JavaScript Programming | - Core JavaScript concepts
|
なにごとによらず初手は难しいです、どのようにIT Specialist INF-306試験への復習を始めて悩んでいますか。我々のIT Specialist INF-306問題集を購買するのはあなたの試験に準備する第一歩です。我々の提供するIT Specialist INF-306問題集はあなたの需要に満足できるだけでなく、試験に合格する必要があることです。あなたはまだ躊躇しているなら、ShikenPASSのINF-306問題集デモを参考しましょ。
質問 # 45
The following code adds items to the groceries array from the other arrays. Line numbers are for reference only.
01 < body >
02 < p id= " list " > < /p >
03 < script >
04 var groceries = [];
05 var dairy = [ " Milk " , " Eggs " , " Cheese " , " Ice Cream " ];
06 var beverages = [ " Juice " , " Water " , " Soda " , " Coffee " ];
07 var fruits = [ " Apples " , " Bananas " , " Grapes " , " Oranges " , " Strawberries " ];
08 var vegetables = [ " Broccoli " , " Carrots " , " Lettuce " , " Spinach " , " Tomatoes " ];
09 var meats = [ " Beef " , " Chicken " , " Pork " ];
10
11 function addVegetables() {
12 groceries = groceries.concat(vegetables);
13 }
14
15 function addFruits() {
16 groceries = groceries.concat(fruits);
17 }
18
19 function addOther() {
20 groceries.push(meats[1]);
21 groceries.push(dairy[3]);
22 }
23
24 fruits.shift();
25 addVegetables();
26
27 groceries.shift();
28 addFruits();
29
30 groceries.pop();
31 groceries.shift();
32
33 addOther();
34 document.getElementById( " list " ).innerHTML = groceries;
You need to debug the code on the left to determine how many items are in the groceries array at the specified breakpoints.
Evaluate the code and answer the questions by selecting the correct option from each drop-down list.
Note: You will receive partial credit for each correct answer.
正解：
解説：
Explanation:
Line 26 drop-down: 5
Line 29 drop-down: 8
Line 32 drop-down: 6
The groceries array starts empty. Line 24 runs fruits.shift(), which removes " Apples " from the fruits array.
This leaves four fruits, but it does not add anything to groceries. Line 25 calls addVegetables(), which executes groceries = groceries.concat(vegetables);. Since vegetables contains five items, groceries contains 5 items at line 26. Line 27 then executes groceries.shift(), removing the first item from groceries and reducing the count to 4. Line 28 calls addFruits(), which appends the four remaining fruits, increasing the array count to 8; therefore, line 29 is 8. Line 30 executes groceries.pop(), removing the last item and reducing the count to
7. Line 31 executes groceries.shift(), removing the first item and reducing the count to 6. Therefore, line 32 is
6. The addOther() function on line 33 has not executed yet at the line 32 breakpoint. References/topics:
JavaScript arrays, debugging breakpoints, concat(), shift(), pop(), push(), array item counting.
質問 # 46
You want to display a message box showing the user ' s current latitude and longitude as identified by the user' s browser.
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:
First drop-down: navigator.geolocation
Second drop-down: navigator.geolocation
Third drop-down: getCurrentPosition(showLocation)
The correct API object is navigator.geolocation because browser-based geographic location is exposed through the Geolocation API, not through window.location. window.location represents the current page URL and navigation state; it does not provide latitude or longitude. The first selection checks whether the browser supports geolocation by evaluating navigator.geolocation. Inside the block, the same object must be used to request the user's current position. The correct method is getCurrentPosition(showLocation), which requests the device's current location and passes a position object to the callback function when the location is available. The callback then reads position.coords.latitude and position.coords.longitude and displays those values with alert(). The alternatives that pass window.location are incorrect because they provide page- location information rather than geographic coordinates. The alternatives that call showLocation(...) directly are also incorrect because the browser must first retrieve the actual position object. References/topics:
Geolocation API, navigator.geolocation, getCurrentPosition(), callback functions, latitude and longitude.
質問 # 47
What is the effect of applying the CSS float: right property to an image?
正解：A
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 # 48
You create an interface for a touch-enabled application. You discover that some of the input buttons do not trigger when you tap them on the screen. You need to identify the cause of the problem. What are two possible causes? Choose 2.
正解：A、C
解説：
The two likely causes are undersized touch targets and overlapping input regions. Touch input is less spatially precise than mouse input because the contact area of a finger is larger and less exact than a pointer cursor.
Microsoft's touch-target guidance states that interactive UI elements must be large enough for users to access accurately, and recommends a target size around 7.5 mm square, approximately 40 × 40 pixels on a 135 PPI display. Earlier Microsoft touch-design guidance similarly emphasizes that controls must be appropriately sized for touch and identifies approximately 9 mm as a minimum targeting area. Therefore, small input buttons may fail to trigger because the user is not actually hitting the active target area. Overlap is also a valid cause: when two active regions occupy the same physical screen area, hit testing may route the touch to a different element, or the effective target area may be reduced. W3C accessibility guidance explicitly treats overlapping targets as reducing measurable target size unless the overlapping controls perform the same action. Event handlers themselves are not the defect; they are the normal mechanism for processing input.
"Touch screen not initialized" is not a standard HTML5 application cause. References/topics: touch input, event handling, hit testing, target size, overlapping controls.
質問 # 49
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 # 50
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自宅にいても外にいても、INF-306テストトレントを勉強できます。 INF-306学習ツールの指導の下では、試験の準備に20〜30時間しかかからないため、他にやることがあるので、時間を心配する必要はありません。 INF-306試験資料を使用して、独自に学習できます。毎日多くの時間を費やす必要はなく、試験に合格し、最終的には証明書を取得します。 INF-306認定は、就職面接の重要なタグになる可能性があり、他の人よりも競争上の優位性があります。
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