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11
Which of the following markup is correct?
i. <b><i>is in error as tags cross</b></i>
ii. <b><i>is not since tags nest</i></b>
Discuss
Answer & Solution
Answer: Option B
Solution:
Tags in HTML are always nested.
12
Which of the following is not a correct (X)HTML rule?
Discuss
Answer & Solution
Answer: Option D
Solution:
Browser ignores unknown attributes.
13
Identify the count of mistakes in the following markup.
<html>
<head>
</head>
<body>
  <li>
    <ul><p>Hello</p></ul>
  </li>
  <br>
  <hr>
</body>
</html>
Discuss
Answer & Solution
Answer: Option B
Solution:
<p> should not be in <li> ,<br> and <hr> shpuld be closed.
14
Rendering engine is not responsible for
Discuss
Answer & Solution
Answer: Option D
Solution:
All the options mentioned are responsibility of rendering engine.
15
Firefox uses _________ rendering engine.
Discuss
Answer & Solution
Answer: Option B
Solution:
Gecko is a web browser engine used in many applications developed by Mozilla Foundation and the Mozilla Corporation as well as in many other open source software projects. Gecko is free and open-source software subject to the terms of the Mozilla Public License version 2.
16
State true or false. It is faster to render HTML and CSS than to interpret and execute JavaScript.
Discuss
Answer & Solution
Answer: Option A
Solution:
When it comes to ordering your CSS and JavaScript, you want your CSS to come first. The reason is that the rendering thread has all the style information it needs to render the page. If the JavaScript includes come first, the JavaScript engine has to parse it all before continuing on to the next set of resources.
17
What is the use of “defer” attribute?
Discuss
Answer & Solution
Answer: Option B
Solution:
The defer attribute is a boolean attribute. When present, it specifies that the script is executed when the page has finished parsing.
18
Which of the following statements is false?
Discuss
Answer & Solution
Answer: Option D
Solution:
All older browsers does not support async. So async and defer are used together in combination.
19
Which of the following is used to read a HTML page and render it?
Discuss
Answer & Solution
Answer: Option A
Solution:
A web browser (commonly referred to as a browser) is a software application for retrieving, presenting and traversing information resources on the World Wide Web.
20
Which of the following is the first web browser?
Discuss
Answer & Solution
Answer: Option A
Solution:
The first web browser was invented in 1990 called World Wide Web which was later renamed to Nexus.