[Free] 2018(Jan) EnsurePass Examcollection Microsoft 70-480 Dumps with VCE and PDF 161-170

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Programming in HTML5 with JavaScript and CSS3

Question No: 161 DRAG DROP – (Topic 4)

You have a stylesheet for an existing website. The website contains the following HTML markup.

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You need to ensure that the lt;ligt; elements are aligned horizontally. You write the following CSS markup in the stylesheet.

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How should you complete the markup? To answer, drag the appropriate code elements to the correct targets in the answer area. Each code element may be used once, more than once, or not at all. You may need to drag the split bar between panes or scroll to view content.

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Answer:

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Explanation:

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References:

http://learn.shayhowe.com/html-css/creating-lists/

Question No: 162 DRAG DROP – (Topic 4)

You are developing a form that captures a user#39;s email address by using HTML5 and jQuery.

The form must capture the form elements as a string. You need to implement this functionality.

How should you develop the form? (To answer, drag the appropriate code segment to the correct target or targets in the answer area. Each code segment may be used once, more than once, or not at all. You may need to drag the split bar between panes or scroll to view content.)

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Answer:

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Explanation:

Ensurepass 2018 PDF and VCE

  • The serialize() method creates a URL encoded text string by serializing form values.

    You can select one or more form elements (like input and/or text area), or the form element itself.

    The serialized values can be used in the URL query string when making an AJAX request. Example: $(quot;formquot;).serialize());

  • decodeURIComponent

    The decodeURIComponent() function decodes a URI component. Return Value:A String, representing the decoded URI

    Incorrect:

    Not decodeURI:

    decodeURI is intended for use on the full URI.

    decodeURIComponent is intended to be used on .. well .. URI components that is any part that lies between separators (; / ? : @ amp; = $ , #).

    Question No: 163 – (Topic 4)

    You are developing an application to track project management for your company. The status of the project is stored in a variable named percentComplete.

    The method must execute only when percentComplete is equal to the numeric value 100. You need to develop the application to meet the requirement.

    Which code segment should you use?

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    1. Option A

    2. Option B

    3. Option C

    4. Option D

    Answer: D

    Explanation: ===: This is 鈥渟trict鈥?or 鈥渋dentical鈥?equality.

    Reference: JavaScript Triple Equals Operator vs Double Equals Operator ( === vs == )

    Question No: 164 – (Topic 4)

    You have the following code. (Line numbers are included for reference only.)

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    You execute the code and you receive an alert that displays the following message: 鈥淯ndefined鈥?

    You need to ensure that the alert displays as shown:

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    What should you do?

    1. Replace line 13 with the following code:alert(e.message);

    2. Replace line 06 with the following code:throw new eval(鈥淥h no! ‘n’ is too small!鈥?

    3. Replace line 13 with the following code:alert(e);

    4. Replace line 06 with the following code.throw new Error(鈥淥h no! ‘n’ is too small!鈥?

    Answer: D Explanation:

    http://www.javascriptkit.com/javatutors/trycatch2.shtml

    Question No: 165 – (Topic 4)

    You have a webpage that includes the following markup and code:

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    You need to troubleshoot the code by clicking the Submit button. Which value will be displayed?

    1. 10

    2. 20

    3. Undefined

    4. Runtime error

    Answer: A

    Explanation: * The outermost assignment, counter = 10; will decide the output that is displayed.

  • Local variables have local scope: They can only be accessed within the function. Example

// code here can not use carName function myFunction() {

var carName = quot;Volvoquot;;

// code here can use carName

}

* A variable declared outside a function, becomes GLOBAL.

A global variable has global scope: All scripts and functions on a web page can access it.

Example

var carName = quot; Volvoquot;;

// code here can use carName function myFunction() {

// code here can usecarName

}

Reference: JavaScript Scope

Question No: 166 – (Topic 4)

You develop an HTML5 webpage. You have the following HTML markup:

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You need to call the click event for the addOneItem button a determined number of times when the user clicks the addBoxOfItems button.

Which code segment should you add to the webpage?

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  1. Option A

  2. Option B

  3. Option C

  4. Option D

Answer: D

Explanation: jQuery provides a way to trigger the event handlers bound to an element without any user interaction via the .trigger() method.

jQuery#39;s event handling system is a layer on top of native browser events. When an event handler is added using .on( quot;clickquot;, function() {…} ), it can be triggered using jQuery#39;s

.trigger( quot;clickquot; ) because jQuery stores a reference to that handler when it is originally added. Additionally, it will trigger the JavaScript inside the onclick attribute.

Reference: Triggering Event Handlers

Question No: 167 – (Topic 4)

Which CSS3 code fragment will style only the external links in an HTML document?

  1. a: visitied {font-weight: bold;}

  2. a [href$= 鈥渉ttp://鈥漖 {font-weight: bold;}

  3. a {font-weight: bold;}

  4. a [href^= 鈥渉ttp://鈥漖 {font-weight : bold;}

Answer: D

Question No: 168 – (Topic 4)

You develop an HTML5 application that interacts with a REST service. The REST service accepts JSON data. A JavaScript object named form Data contains data that is sent to the REST service.

You need to convert the JavaScript object named formData into JSON. Which code segment should you use?

  1. jQuery.ajax.valueOf(formData);

  2. window.evai(formData);

  3. JSON.stringify (formData);

  4. formData.toString();

Answer: C

Explanation: JSON.stringify converts a JavaScript value to a JavaScript Object Notation (JSON) string.

Reference: JSON.stringify Function (JavaScript)

Question No: 169 – (Topic 4)

You are creating a custom object as described by the following code. Line numbers are included for reference only.

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You need to implement the perimeter method. Which code segment should you insert at line 05?

  1. function perimeter () {return 4 * side;}

  2. function perimeter () {return 4 * this.side;}

  3. function perimeter () {return 4 * me.side;}

  4. function perimeter (obj) {return 4 * obj.side;}

Answer: B Explanation:

http://creative-coding.decontextualize.com/objects-with-methods/

Question No: 170 – (Topic 4)

You are developing a web page that performs CPU-intensive calculations. A web worker processes these calculations on a separate background thread. The process is instantiated from the web page.

You need to stop the web worker process after the calculations are completed.

Which two actions can you perform to achieve this goal? (Each correct answer presents a complete solution. Choose two.)

  1. From the web page, call the close() method.

  2. From the web worker process, call the terminate() method.

  3. From the web page, call the terminate() method.

  4. From the web worker process, call the close() method.

Answer: C,D

Explanation: Terminating a worker

If you need to immediately terminate a running worker, you can do so by calling the worker#39;s terminate() method:

myWorker.terminate();

The worker thread is killed immediately without an opportunity to complete its operations or clean up after itself.

Workers may close themselves by calling their own close method: close();

Reference: Using Web Workers

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