JavaScript Questions & Answers – Browser Parsing and Rendering – I

This set of Javascript Multiple Choice Questions & Answers (MCQs) focuses on “Browser Parsing and Rendering – I”.

1. What is the purpose of a Rendering Engine?
a) Parsing objects in page
b) Drawing all objects in page
c) Both Parsing & Drawing all objects in page
d) Rendering object
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2. What is the purpose of the JavaScript Engine?
a) Compiling the JavaScript
b) Interpreting the JavaScript
c) Both Compiling & Interpreting the JavaScript
d) Parsing the javascript
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3. Which layer is used to handle the HTTP requests?
a) Network Layer
b) Transport Layer
c) Application Layer
d) Presentation Layer
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4. The User Interface is taken care of which layer?
a) Transport Layer
b) Network Layer
c) UI Layer
d) Presentation Layer
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5. Which of the following browsers use Webkit?
a) Chrome
b) Internet Explorer
c) Safari
d) Both Chrome and Safari
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6. Which of the following first developed Gecko?
a) Safari
b) Netscape
c) Opera
d) Internet Explorer
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7. Which of the following render HTML?
a) Browsers
b) Email Clients
c) Web Components
d) All of the mentioned
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8. SpiderMonkey was developed by _____________
a) Firefox
b) Internet Explorer
c) Safari
d) Opera
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9. Carakan is used by which of the following browsers?
a) Firefox
b) Internet Explorer
c) Safari
d) Opera
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10. Which is the alternate name for JavaScriptCore that is used by Safari?
a) Nitro
b) SpiderMoney
c) Carakan
d) V8
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11. What will be the output of the following JavaScript code?

<p id="demo"></p>
<script>
function myFunction() 
{
   var str = "have best";
   var patt = new RegExp("es");
   var res = patt.test(str);
   document.getElementById("demo").innerHTML = res;
}
</script>

a) true
b) false
c) error
d) undefined
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12. What will be the output of the following JavaScript code?

<p id="demo"></p>
<script>
function myFunction() 
{
   var patt = new RegExp("World", "g");
   var res = patt.toString();
   document.getElementById("demo").innerHTML = res;
}
</script>

a) /World/g
b) World
c) World/g
d) Undefined
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13. What will be the output of the following JavaScript code?

<p id="demo"></p>
<script>
function myFunction() 
{
   var str = "Give 100%!"; 
   var patt1 = /\d/g;
   var result = str.match(patt1);
   if(result)
  	result=true;
   else
  	result=false;
   document.getElementById("demo").innerHTML = result;
}
</script>

a) True
b) False
c) Error
d) Undefined
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14. What will be the output of the following JavaScript code?

<p id="demo"></p>
<script>
function myFunction() 
{
   var str = "Is this all there is?";
   var patt1 = /\s/g;
   var result = str.match(patt1);
   if(result)
  	result=true;
   else 
  	result=false;
   document.getElementById("demo").innerHTML = result;
}
</script>

a) true
b) false
c) error
d) undefined
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15. What will be the output of the following JavaScript code?

<p id="demo"></p>
<script>
var str = "HELLO, LOOK AT YOU!"; 
var patt1 = /\bLO/;
var result = str.search(patt1);
document.getElementById("demo").innerHTML = result;
</script>

a) 4
b) 7
c) 3
d) 8
View Answer

Sanfoundry Global Education & Learning Series – Javascript Programming.

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