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Q:

What does an HTML tag do?

A) It specifies formatting and layout instructions for your web page B) It hides programming instructions from view
C) It determines the organizational structure of your Web site D) It connects your web site to an operating environment
 
Answer & Explanation Answer: A) It specifies formatting and layout instructions for your web page

Explanation:
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Q:

What is the difference between XML and HTML?

A) HTML is used for exchanging data, XML is not B) XML is used for exchanging data, HTML is not
C) HTML can have user defined tags, XML cannot D) XML can have user defined tags, HTML cannot
 
Answer & Explanation Answer: B) XML is used for exchanging data, HTML is not

Explanation:
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Q:

What are meta tags used for?

A) To store information usually relevant to browsers and search engines B) To only store information usually relevant to browsers
C) To only store information about search engines D) To store information about external links
 
Answer & Explanation Answer: A) To store information usually relevant to browsers and search engines

Explanation:
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Q:

What are the new attributes provided in HTML5 for "form" tag ?

Answer

The new attributes provided in HTML5 for <form> are: 


a.) autocomplete


– It specifies if a form or input field should have autocomplete as on or off. 


– If autocomplete is on, the browser is able to fill the values based on the values filled by the user earlier. 


– autocomplete works for following input types: text, search, url, tel, email, password, datepickers, range, and color. 


b.) novalidate


- This is a boolean attribute. 


- When present, it signifies that the form-data should not be validated when submitted.

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Subject: Web Technology

Q:

What is a Web Worker?

Answer

- A web worker is a JavaScript which runs in the background. It exists in external files. 


 - It is independent of other scripts and does not affect the performance of the page. 


 - Web workers are usually used for CPU intensive tasks.

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Q:

What is a Manifest file?

Answer

A Manifest file is a simple text file that tells the browser what to cache and what not to cache. 


There are three sections of a Manifest file:


i.) CACHE MANIFEST - Files listed here are cached after they are downloaded for the first time. 


ii.) NETWORK - Files listed here require a connection to the server, and are never cached


iii.) FALLBACK - Files listed here specify fallback pages if a page is inaccessible

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Q:

What is the concept of Application Cache in HTML5? What are its advantages?

Answer

The Application Cache concept introduced by HTML5 means that a web application is cached, and accessible without an internet connection.


There are three advantages of Application Cache:


1.Offline browsing - users can use the application when they're offline


2.Speed - cached resources load faster


3.Reduced server load - the browser will only download updated/changed resources from the server

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Q:

Differentiate between localStorage and sessionStorage objects.

Answer

- localStorage object stores the data without an expiry date while sessionStorage object stores the data only for one session. 


- With localStorage object, data will not be deleted when the browser window is closed while the data is deleted when the browser window closes with sessionStorage objects.

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Subject: Web Technology