Microsoft 70-480 Online Questions & Answers

• Question 121:

  You develop an HTML application that is located at www.adventure-works.com.

  The application must load JSON data from www.fabrikam.com.

  You need to choose an approach for loading the data.

  What should you do?

  A. Design a REST URI scheme with multiple domains.
  B. Configure Cross-Origin Resource Sharing (CORS) on the servers.
  C. Load the data by using WebSockets.
  D. Use the jQuery getJSON method.
  B. Configure Cross-Origin Resource Sharing (CORS) on the servers.

  ---

  *

  Cross-origin resource sharing (CORS) is a mechanism that allows Javascript on a web page to make XMLHttpRequests to another domain, not the domain the Javascript originated from. Such "cross-domain" requests would otherwise be forbidden by web browsers, per the same origin security policy. CORS defines a way in which the browser and the server can interact to determine whether or not to allow the cross-origin request. It is more powerful than only allowing same-origin requests, but it is more secure than simply allowing all such cross-origin requests.

  *

  You must use Cross Origin Resource Sharing

  It's not as complicated as it sounds...simply set your request headers appropriately...in Python it would look like:

  self.response.headers.add_header('Access-Control-Allow-Origin', '*'); self.response.headers.add_header('Access-Control-Allow-Methods', 'GET, POST, OPTIONS'); self.response.headers.add_header('Access-Control-Allow-Headers', 'X-Requested-With'); self.response.headers.add_header('Access-Control-Max-Age', '86400');

• Question 122:

  You develop a webpage with a standard input control by using HTML5.

  The input control must display the text Enter your given name, as shown below:

  

  When a user selects the input control, the text must disappear.

  You need to create the input control.

  Which input control should you use?

  D

  ---

  The placeholder attribute specifies a short hint that describes the expected value of an input field (e.g. a sample value or a short description of the expected format).

  The short hint is displayed in the input field before the user enters a value.

  The placeholder attribute works with the following input types: text, search, url, tel, email, and password.

  Reference: https://www.w3schools.com/TAGS/att_input_placeholder.asp

• Question 123:

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

  

  You need to write a function that will initialize and encapsulate the member variable fullname.

  Which are two possible code fragments that you can insert at line 02 to achieve the goal? Each correct answer presents a complete solution.

  NOTE: Each correct selection is worth one point.

  A. function Student(someName) { fullname=someName; }
  B. function Student (someName) { var fullname=someName; }
  C. function Student (fullname) { This.fullname=fullname; }
  D. function Student (someName) { this.fullname=someName; }
  B. function Student (someName) { var fullname=someName; }
  C. function Student (fullname) { This.fullname=fullname; }

  ---

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

• Question 124:

  You are developing an HTML5 web application for a surveyor company that displays topographic images.

  The application must: Display the topographic images at different zoom levels without loss of detail Print the topographic images without loss of detail Work from only one source file for each topographic image

  You need to ensure that the topographic images display according to the requirements.

  Which HTML5 element should you use?

  A. SVG
  B. CANVAS
  C. SAMP
  D. AREA
  A. SVG

  ---

  SVG stands for Scalable Vector Graphics SVG is used to define graphics for the Web SVG is a W3C recommendation

  The HTML

  SVG has several methods for drawing paths, boxes, circles, text, and graphic images.

  References: https://www.w3schools.com/html/html5_svg.asp

• Question 125:

  HOTSPOT

  You develop a webpage.

  The layout of the webpage must resemble the following image:

  

  You need to ensure that the page renders properly.

  How should you complete the relevant CSS styles? (To answer, select the appropriate option from each drop-down list in the answer area.)

  Hot Area:

  

  

  ---

  * position: relative The element is positioned relative to its normal position, so "left:20" adds 20 pixels to the element's LEFT position

  * position: absolute The element is positioned relative to its first positioned (not static) ancestor element

  Reference: https://www.w3schools.com/cssref/pr_class_position.asp

• Question 126:

  You are developing a customer web form that includes the following HTML.

  You need to change the HTML markup so that customers can enter only a valid three-letter country code.

  Which HTML should you use?

  B

  ---

  HTML pattern Attribute

  The pattern attribute specifies a regular expression that the element's value is checked against.

  Example

  An HTML form with an input field that can contain only three letters (no numbers or special characters):

  Country code:

  pattern="[A-Za-z]{3}" title="Three letter country code">

  Reference: HTML pattern Attribute

  http://www.w3schools.com/tags/att_input_pattern.asp

• Question 127:

  HOTSPOT

  You are developing a web application that retrieves data from a web service. The data being retrieved is a custom binary datatype named bint. The data can also be represented in XML.

  Two existing methods named parseXml() and parseBint() are defined on the page.

  The application must:

  Retrieve and parse data from the web service using binary format if possible Retrieve and parse the data from the web service using XML when binary format is not possible You need to develop the application to meet the requirements. What should you do? (To answer, select the appropriate options from the drop-down lists in the answer area.)

  Hot Area:

  

  

  ---

  * accepts : 'application/bint, text/xml'

  accepts:'application/bin,text/xml' to accept only XML and binary content in HTML responses.

  * Use the following condition to check if the html response content is binary: If(request.getResponseHeader("Content-Type")=="application/bint"

  * var request = $.ajax({

  uri:'/',

  accepts: 'application/bint, text/xml',

  datafilter: function(data,type){

  if(request.getResponseHeader("Content-Type")=="application/bint")

  return parseBint(data);

  else

  return parseXml();

  },

  success: function (data) {

  start(data);

  }

  });

• Question 128:

  You are testing the value of the following variable in JavaScript.

  var height = "300";

  A block of code must execute if the following conditions are true:

  The height variable is set to 300

  The height variable is of type string

  You need to implement the code to run the test.

  Which line of code should you use?

  A. if (height = = 300)
  B. if (height = = "300")
  C. if (height ! "300")
  D. if (height ! = 300)
  B. if (height = = "300")

  ---

  Use = = to test for equality. Use "300" to test for the string.

• Question 129:

  You develop an HTML5 web application. The web application contains a form that allows users to enter only their month of birth.

  The value that the users enter must be numbers between 1 and 12, inclusive.

  You need to implement the form element for the month of birth.

  Which element should you use?

  C

  ---

  Example:

• Question 130:

  You are developing a web page that has a group of H1 and H2 elements. The page also includes a CSS class named underlineMe.

  You have the following requirements:

  The font color of all H1 and H2 elements must be changed to red.

  The CSS class underlineMe must be applied to all H1 and H2 elements.

  You need to update the web page to meet the requirements.

  Which code segment should you use?

  

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

  ---

  The :header selector selects all header elements (

  to

  ).

  Reference: jQuery :header Selector http://www.w3schools.com/jquery/sel_header.asp