Microsoft 70-480 Online Practice Questions and Exam Preparation

Microsoft 70-480 Online Questions & Answers

• Question 241:

  You are developing an application that consumes an external web service that returns the latest stock rate.

  The application has two methods: The getResults() method makes an AJAX web service request The ShowRate() method displays the stock rate from the web service response

  You need to ensure that the ShowRate() method always displays the latest stock rate.

  Which code segment should you use?

  

  A. Option A
  B. Option B
  C. Option C
  D. Option D
  D. Option D

  ---

  " always displays the latest stock rate ". Should use cache: false

  Note: cache (default: true, false for dataType 'script' and 'jsonp')

  Type: Boolean

  If set to false, it will force requested pages not to be cached by the browser.

  Reference: jQuery.ajax()

• Question 242:

  You are developing a JavaScript library.

  You have the following requirements:

  Custom exceptions must include an error message and custom error number.

  These exceptions must be thrown when data validation errors occur.

  Developers must call the library to easily catch the exception and identify the problem.

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

  

  You need to complete the code to meet the requirements.

  Which line of code should you insert at line 09?

  A. throw new ValidationException.Exception (123, "Day of week must be les3 than 7");
  B. return new ValidationException(123, "Day of week must be less than 7");
  C. throw ValidationException(123, "Day of week must be less than 7");
  D. catch ValidationException(123, "Day of week: must be less than 7");
  A. throw new ValidationException.Exception (123, "Day of week must be les3 than 7");

  ---

  Example:

  if (value < -100 || value > 100)

  {

  throw new ValidationException(String.Format("Value is {0} than {1}.",

  (value > 100 ? "greater" : "less"), value));

  }

• Question 243:

  You are developing an HTML5 web application. The application loads data from a web service by using AJAX. The application displays the data by calling the displayData function. The data is loaded by using the following code.

  

  You need to ensure that the data is displayed when it is successfully retrieved from the web service. Which code segment should you use?

  

  A. Option A
  B. Option B
  C. Option C
  D. Option D
  B. Option B

  ---

  The deferred.done() method accepts one or more arguments, all of which can be either a single function or an array of functions. When the Deferred is resolved, the doneCallbacks are called. Callbacks are executed in the order they were

  added. Since deferred.done() returns the deferred object, other methods of the deferred object can be chained to this one, including additional .done() methods.

  $.ajax

  Reference: https://api.jquery.com/deferred.done/

• Question 244:

  HOTSPOT

  You are developing a form that captures a user'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, select the appropriate options from the drop-down lists in the answer area.)

  Hot Area:

  

  

• Question 245:

  DRAG DROP

  You are developing an application for an online retailer. The company ships only to certain countries.

  The application must:

  

  Store a list of country codes in an array

  

  Validate the country code of the shipping address against the countries array

  

  Include a Boolean value in the array that indicates whether or not you can ship to the country

  

  Display a list of countries that can be shipped to if the user inputs a code for a country that the retailer cannot ship to

  You need to develop the application to meet the requirements.

  Which code segment or segments should you use? (To answer, drag the appropriate code segment or segments from the list of code segments to the correct location or locations in the work 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.)

  Select and Place:

  

  

  ---

  !arr[ctry] is true when the array element is false.

  The for..in statement iterates over the enumerable properties of an object, in arbitrary order. For each distinct property, statements can be executed.

  References:

  https://www.w3schools.com/js/js_arrays.asp

  https://www.w3schools.com/jsref/jsref_forin.asp

  https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/for...in

  https://www.html5rocks.com/en/tutorials/workers/basics/

• Question 246:

  You are developing an HTML5 page named main.html. The JavaScript code for the main page is located in a file named myApp.js.

  You need to create a web worker and instantiate it from main.html.

  Where should you place the web worker code?

  A. In the myApp.js file
  B. In the main.html file
  C. In a separate .js (JavaScript) file
  D. In a separate executable file
  C. In a separate .js (JavaScript) file

  ---

  Spawning a dedicated worker

  Creating a new worker is simple. All you need to do is call the Worker() constructor, specifying the URI of a script to execute in the worker thread (main.js):

  var myWorker = new Worker("worker.js");

  Reference: https://developer.mozilla.org/en-US/docs/Web/API/Web_Workers_API/Using_web_workers

• Question 247:

  You are developing an application that consumes an external web service. The web service returns the latest stock rate. The application has two methods:

  The getResults() method makes an AJAX web service request.

  The ShowRate() method displays the stock rate from the web service response.

  The application has two JavaScript variables named newStockRate and stockRate to store the latest and previous stock rates, respectively.

  Users must be able to compare the old stock rate with the new stock rate.

  You need to ensure that newStockRate and stockRate retain their values for comparison.

  Which code segment should you use?

  

  A. B. C.
  C

• Question 248:

  You are developing a web application.

  You need to create an input field to provide users with the ability to select a product from a drop-down list. The solution must meet the following requirements:

  The drop-down list must use AutoComplete.

  Users must see Car and Boat as the two available options.

  Users must be able to select one of the two options or to enter manually their own option in the text box.

  You write the following HTML markup.

  

  How should you complete the markup? To answer, drag the appropriate code elements to the correct targets. 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.

  Select and Place:

  

  

• Question 249:

  DRAG DROP

  You are developing a web page for runners who register for a race. The page includes a slider control that allows users to enter their age. You have the following requirements:

  

  All runners must enter their age.

  

  Applications must not be accepted from runners less than 18 years of age or greater than 90 years.

  

  The slider control must be set to the average age (37) of all registered runners when the page is first displayed.

  You need to ensure that the slider control meets the requirements.

  What should you do? (To answer, drag the appropriate word or number to the correct location in the answer area. Each word or number 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.)

  Select and Place:

  

  

  ---

  Box 1-3: The is used for input fields that should contain a value within a range. Example Box 4-5: Use the value attribute to set the default value Box 6: Definition and Usage The required attribute is a boolean attribute. When present, it specifies that an input field must be filled out before submitting the form. Example Username: Reference: HTML Input Types http://www.w3schools.com/html/html_form_input_types.as

• Question 250:

  HOTSPOT

  You are creating a custom CSS3 style.

  You have the following requirements to complete the style:

  

  Box1 has a red outline.

  

  Box1 contains box2, and box2 must remain inside box1

  

  Box2 must have a green to black gradient.

  

  Box2 must be surrounded by white space.

  The style resembles the following diagram:

  

  You need to add the CSS3 code to the styles.

  How should you complete the relevant code? (To answer, select the appropriate code segment in each drop-down list in the answer area.)

  Hot Area:

  

  

  ---

  * border: 1px solid #f00;

  a red border 1 pixel thick.

  * background-image: linear-gradient(to bottom, green,black);

  Linear Gradients (goes down/up/left/right/diagonally).

  Starts at the top with green and goes to bottom with black.

  * margin: 10px 10px 10px 10px;

  The CSS margin properties define the space around elements.

  The top, right, bottom, and left margin can be changed independently using separate properties.

  Incorrect Answers:

  * border-color: red;

  will not display any border

  * Radial Gradients (defined by their center).