Microsoft 70-480 Online Practice Questions and Exam Preparation

Microsoft 70-480 Online Questions & Answers

• Question 251:

  You troubleshoot a webpage that contains the following HTML element:

  height= "300">Your browser does not support the HTML5 canvas.

  The following JavaScript code is included in a script tag in the HEAD section of the webpage: (Line numbers are included for reference only.)

  

  You need to invoke the clickReporter() JavaScript function when a user clicks the mouse on the canvas HTML element. What should you do?

  A. Add the following attribute to the canvas HTML element: clicked= "clickReporter()"
  B. Replace the code segment at line 06 with the following code segment: drawBox.Click += clickReporter;
  C. Insert the following code segment at line 07: canvas.onclick = clickReporter;
  D. Insert the following code segment at line 07: canvas, click = clickReporter;
  A. Add the following attribute to the canvas HTML element: clicked= "clickReporter()"

• Question 252:

  You are developing a web page that will contain an animated logo. The web page currently has a logo image on a canvas object. You reference the context of the canvas object by using a variable named context.

  You need to spin the logo image on the canvas.

  Which method should you use?

  A. context.rotate()
  B. context.spin()
  C. context.translatePosition()
  D. context.setTransform()
  A. context.rotate()

  ---

  The rotate() method rotates the current drawing.

  Example

  Rotate the rectangle 20 degrees:

  JavaScript:

  var c=document.getElementById("myCanvas");

  var ctx=c.getContext("2d");

  ctx.rotate(20*Math.PI/180);

  ctx.fillRect(50,20,100,50);

  Incorrect Answers:

  B: there is no canvas.spin method.

  Reference: https://www.w3schools.com/Tags/canvas_rotate.asp

• Question 253:

  DRAG DROP

  

  You have the following code.

  You need to ensure that the function returns true if the value of each object in arrayObj is more than 10.

  How should you complete the code? 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.

  NOTE: Each correct selection is worth one point.

  Select and Place:

  

  

• Question 254:

  You are creating a custom object as described by the following code.

  

  You need to implement the calcArea method. Which code should you use?

  

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

  ---

  Need to refer to .this in the calculation.

• Question 255:

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

  

  You need to troubleshoot the code by clicking the Submit button.

  Which value will be displayed?

  A. 10
  B. 20
  C. Undefined
  D. Runtime error
  A. 10

  ---

  *

  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 = "Volvo";

  // 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 = " Volvo";

  // code here can use carName

  function myFunction() {

  // code here can usecarName

  }

  Reference: https://www.w3schools.com/js/js_scope.asp

• Question 256:

  HOTSPOT

  You are creating a custom style by using CSS3.

  You have the following requirements to complete the style:

  1. If the text in a line must wrap to another line, the last word must be able to break across lines.

  2. All text must be black and have a blue shadow, such that the text appears to glow blue.

  The text must look like the following:

  

  You need to complete the CSS3 style.

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

  Hot Area:

  

  

  ---

  * text-shadow

  * hyphens: auto

  Words can be broken at appropriate hyphenation points either as determined by hyphenation characters) inside the word or as determined automatically by a language-appropriate hyphenation resource (if supported by the browser or provided via @hyphenation-resource).

  Conditional hyphenation characters inside a word, if present, take priority over automatic resources when determining hyphenation points within the word.

  References:

  https://www.w3schools.com/cssref/css3_pr_text-shadow.asp

  https://css-tricks.com/almanac/properties/h/hyphenate/

• Question 257:

  You are developing an application that uses a JavaScript library. The library contains the following functions.

  

  The application uses the following code. (Line numbers are included for reference only.)

  

  The library may throw many types of exceptions. The exceptions are grouped by category.

  You need to catch and identify the exceptions by group.

  Which code segment should you insert at line 05?

  

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

  ---

  The instance of operator tests whether an object has in its prototype chain the prototype property of a constructor.

  The instance of operator tests presence of constructor.prototype in object prototype chain.

  Example:

  // defining constructors

  function C(){}

  function D(){}

  var o = new C();

  // true, because: Object.getPrototypeOf(o) === C.prototype

  o instanceof C;

  // false, because D.prototype is nowhere in o's prototype chain

  o instanceof D;

  References: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/instanceof

• Question 258:

  HOTSPOT

  You have the following code.

  

  You need to complete the code to meet the following requirements:

  1. The call to the Open method must run synchronously.

  2. The parameters in the call must be sent by using the query string.

  How should you complete the code? To answer, select the appropriate options in the answer area.

  NOTE: Each correct selection is worth one point.

  Hot Area:

  

  

  ---

  

  XMLHttpRequest().open(GET, url, false);

  Target 1: GET

  GET is required for parameters to be sent in the query string

  Target 2: false

  The default is true, which allows for asynchronous operation. False is for synchronous operation.

  References:

  https://developer.mozilla.org/en-US/docs/Web/API/XMLHttpRequest/Using_XMLHttpRequest

• Question 259:

  DRAG DROP

  You have the following HTML markup.

  

  You need to ensure that when a user presses btnDraw, a rectangle that has the following characteristics is drawn:

  1. The y-coordinate must equal 10.

  2. The x-coordinate must equal 10.

  3. The rectangle must have a height and width of 100.

  The solution must use local variables only.

  Which five JavaScript code segments should you use? Develop the solution by selecting and arranging the required code blocks in the correct order.

  Select and Place:

  

  

  ---

  function drawOnCanvas() {

  var context = document.getElementById('canvas1');

  var context = canvas.getContext('2d');

  context.fillRect(10, 10, 100, 100);

  }

  References: http://techfunda.com/howto/503/canvas-rectangle

• Question 260:

  You would like to create a web application by using HTML5, JavaScript, and CSS3. Which of the following Visual Studio 2012 editions can you use? (Choose all that apply.)

  A. Visual Studio Professional 2012
  B. Visual Studio Premium 2012
  C. Visual Studio Ultimate 2012
  D. Visual Studio Express 2012 for Web
  E. Visual Studio Express 2012 for Windows 8
  A. Visual Studio Professional 2012
  B. Visual Studio Premium 2012
  C. Visual Studio Ultimate 2012
  D. Visual Studio Express 2012 for Web

  ---

  References: http://www.daoudisamir.com/references/vs_ebooks/html5_css3.pdf