Interview Questions.

Question 1. How Many Document Types Are Defined For Atom Feed Files?

Answer :

There are 2 file sorts described for Atom feed files:

Atom Feed Document - Representing an Atom feed, which includes metadata approximately the feed, and some or all the entries related to it. Its root element is the <feed> element.
Atom Entry Document - Representing simplest one Atom entry. Its root element is the <entry> element.
Question 2. Are Atom Feed Files Xml Documents?

Answer :

Yes. Atom feed documents are XML (eXtensible Markup Language) documents. Atom feed documents have to be nicely-shaped XML documents, respecting the following XML rules.

The first line must be the "xml" processing education with "version" and "encoding" attributes.
There ought to be handiest one root element in a unmarried XML document.
All elements ought to be closed with the last tags.
One element can be nested interior every other detail.
One element cannot be in part nested inside another detail.
Element attribute values need to be quoted with double quotes.
Special characters in detail attribute values or element contents have to be covered the use of entities, like < and >.
XML Interview Questions
Question three. What Happens When Firefox Knows A Web Page Has Atom Feeds?

Answer :

When you operate a FireFox browser traveling a Web page that has an Atom feed define, FireFox will display a "live bookmark" icon inside the repute bar. You can click the "live bookmark" to add the Atom feed to the bookmark listing.

If you need to look FireFox's "live bookmark" icon, you can use a FireFox browser to go to the "webmaster.Html" web page created in previous tutorials. You will the "stay bookmark" icon displayed within the status bar on the right bottom corner as shown inside the image below:

FireFox Live Bookmark Icon

Clicking at the "live bookmark" icon, the Atom feed document "atom.Xml" will display up to permit you to choose and upload to the bookmark list.

Question four. What Is Rss (absolutely Simple Syndication)?

Answer :

RSS (Really Simple Syndication) is generation that can be used on Websites to syndicate and distribute regularly up to date content material via news aggregators.

Syndication blessings each customers and publishers by helping users devour extra statistics in preference to journeying a couple of internet websites to peer what's new, users can experiment headlines or article summaries and click on to examine the entire text. Some publishers additionally make their whole content (whether complete-textual content or audio/video) to be had for customers to access via RSS and consider in different packages. It's "virtually simple" for publishers to make content to be had on this layout.

RSS is also a unique XML based language used to create RSS files on Websites that consists of headlines or summaries of information, or web site contents to permit information aggregators to fetch and redistribute.

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Question 5. What Is The Relation Between Rss And Xml?

Answer :

XML (Extensible Markup Language) is a general markup language to arrange common statistics into a dependent report with embedded tags.

RSS (Really Simple Syndication) is an extension of XML designed to arrange headlines of news or summaries of Web pages to feed to news aggregators.

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Question 6. How Many Versions Of Rss Language Standards?

Answer :

RSS is incredibly new. Many variations had been advanced in recent years:

RSS 0.90 - The earliest recognized version of RSS launched to the general public via Netscape in 1999. RSS zero.90 is based totally on RDF (Resource Description Framework). When RSS 0.90 changed into created, the RSS initialization stood for Rich Site Summary and not Really Simple Syndication.
RSS zero.Ninety one - Developed with the aid of UserLand in 2000.
RSS 1.0 - Published as an offer through a collection led by way of Rael Dornfest at O'Reilly in 2000.
RSS 2.0 - Released thru Harvard below a Creative Commons license in 2003.
Question 7. What Is Atom In Rss?

Answer :

Atom is an XML-based report format that describes lists of related information known as "feeds". Feeds are composed of some of objects, known as "entries", each with an extensible set of attached metadata. For instance, every access has a title.

The current version of Atom is Atom 1.0.

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Question eight. What Are The Main Differences Between Atom 1.Zero And Rss 2.0?

Answer :

Main variations among Atom 1.0 and RSS 2.0:

Atom has separate "precis" and "content" elements, whilst RSS most effective has one "description" element.
Atom standardizes auto-discovery in contrast to the many non-standard variants used with RSS 2.0.
In Atom, it's miles obligatory that every entry have a globally precise ID, that's essential for reliable updating of entries.
Atom 1.0 allows standalone Atom Entry files whereas with RSS 2.0 best complete feed documents are supported.
Atom specifies that dates be within the format described in RFC 3339. The date layout in RSS 2.Zero was underspecified and has led to many different formats getting used.
Question 9. What Is The Icon For Rss And Atom?

Answer :

The Web browser and Website syndication enterprise has followed a popular icon to pick out syndicated content as proven below:

Syndication Feed Icon

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Question 10. What Is Atom 1.Zero Standard?

Answer :

Atom is an XML-based totally report layout that describes lists of associated statistics called "feeds". Feeds are composed of some of gadgets, called "entries", each with an extensible set of attached metadata. For example, each access has a identify.

The present day model of Atom is Atom 1.Zero.

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Question eleven. What Is The Icon For Atom Syndication?

Answer :

The Web browser and Website syndication enterprise has adopted a widespread icon to identify syndicated content material as shown beneath:

Syndication Feed Icon

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Question 12. What Is The Mime Type Definition For Atom Files?

Answer :

Atom documents have its own MIME type definition as:

MIME type: application/atom+xml
File extension: .Atom, .Xml
Type of format: Syndication
Extended from: XML
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Question thirteen. What Is An Atom Syndication Feed?

Answer :

An Atom Syndication feed is only a report that:

Is generated statically or dynamically.
Has an handy URL.
Confirms with Atom popular.
Contains headlines or summaries of a whole Website, a Website segment, or a single Web web page.
Question 14. Is There Any Dtd File To Validate Atom Feed Files?

Answer :

A DTD (Document Type Definitions) record incorporates a hard and fast of definitions of XML factors and attributes to shape a new XML based totally language. The same DTD report can be used to validate XML files that follow the brand new language.

Atom feed documents are XML primarily based, however there appears to be no DTD documents exist to validate Atom feed files.

Question 15. Is There Any Xsd File To Validate Atom Feed Files?

Answer :

A XSD (XML Schema Definition) record incorporates a set of definitions of XML factors and attributes to form a new XML primarily based language. The same DTD document can be used to validate XML documents that follow the brand new language.

Atom feed files are XML based totally, however there seems to be no XSD documents exist to validate Atom feed files.

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Question 16. How To Create Atom Feed Files?

Answer :

Obviously, there are numerous ways to create Atom Feed files:

Using Atom online scrapers - On-line scrapers are on-line offerings that can examine your Web pages and convert the end result into Atom feed documents routinely. All you want to do is to provide the URLs of your Web pages.
Using Atom off-line scrapers - Off-line scrapers are software gear that could analyze your Web pages and convert the end result into Atom feed files routinely. All you want to do is to provide your Web page contents to scrapers.
Using Atom report editors - Creating Atom feed files by entering required records and allow the editor to complete the XML factors for you. A excellent example of Atom report editor is Tristana Writer.
Using customary text editors - Creating Atom feed files by entering all of the required XML elements your self with common editors, like UltraEdit or vi.
Using Atom report era APIs - APIs (Application Programming Interfaces) are programming applications, modules or libraries that you could interact with to your very own applications to perform predefined functions. Atom file generation APIs lets you write your very own applications to generate Atom documents. For instance, XML::Atom is Atom file era API for Perl language.
Question 17. How To Tell Visitors That You Have Atom Syndication Feeds?

Answer :

There are several methods you could inform your site visitors which you have Atom syndication feeds to be had to your Web website:

Showing your syndication feed URLs as hyper hyperlinks with the Atom syndication icon.
Adding a <link> tag for your normal Web pages to allow browsers to expose the RSS boomark icons.
Making your Atom feed report call to be "atom.Xml" to allow browsers and search engines like google and yahoo to auto discover feeds.
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Question 18. How To Generate A Feed Entry Title Element?

Answer :

The <title> detail is a required sub-detail of the <entry> detail. The title element have to incorporate a short however human readable name of the feed entry. You should follow the equal guidelines on Web page identify elements to generate your Atom feed access identify elements.

One approach is to apply the equal title as the Web web page that your Atom feed access is based totally on. For example, if one in every of your web page is blanketed as an entry in your Atom feed file, and that page has a title called: "Atom Feed Introduction and File Generation". Now you want to generate an Atom feed for that Web web page. Obviously, you should the equal identify as that web page:

 <title>Atom Feed Introduction and File Generation</title>

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Question 19. What Are Sub-elements Of The Entry Element?

Answer :

The "access" detail has the subsequent sub-factors described:

<author> - Specifying the non-public information about an creator of the contents provided on this feed access. A feed element may additionally have 0, one or greater writer sub-elements.
<category> - Specifying the category statistics of the contents provided on this feed access. A feed detail may have 0, one or more class sub-factors.
<content> - Specifying the content of this feed access. A feed detail might also have zero, or one content material sub-element.
<contributor> - Specifying the non-public statistics about a contributor of the contents supplied in this feed entry. A feed element may also have zero, one or greater contributor sub-elements.
<id> - Specifying a URI that universally and uniquely identifies this feed entry. A feed detail need to precisely one id sub-element.
<link> - Specifying a URL vicinity of a Web page as a reference to this feed. A feed element may have zero, one or more hyperlink sub-elements. But if there's no content material sub-detail in a feed access, as a minimum one link sub-detail with rel="exchange" is required.
<published> - Specifying a time stamp of when this feed entry become at the beginning posted A feed detail might also have 0 or one published sub-detail.
<rights> - Specifying the records about the copyrights for this feed. A feed element may have zero or one rights sub-element.
<source> - Specifying a feed entry in every other feed record if this access is a copy of that access. A feed detail may have 0 or one source sub-element.
<summary> - Specifying a summary for this feed entry. A feed detail may also have zero or one summary sub-element. However it's miles advocated that each feed access to have one precis sub-element.
<title> - Specifying a title for this feed. A feed element should have exactly one identify sub-detail.
<updated> - Specifying a time stamp of when this feed was up to date. A feed detail have to have precisely one up to date sub-element.
Question 20. What Is The Relation Between Atom And Xml?

Answer :

XML (Extensible Markup Language) is a familiar markup language to arrange normal facts into a based record with embedded tags.

Atom is an extension of XML designed to organize headlines of news or summaries of Web pages to feed to information aggregators.

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Question 21. How To Generate A Feed Category Element?

Answer :

The <category> detail isn't always a required sub-element of the <feed> element. However, it's far encouraged to have one or greater <category> factors to offer classifications for this feed.

The <category> detail has three attributes:

<term> - Specifying a short term for this category.
<label> - Specifying a protracted label for this class.
<scheme> - Specifying a URI as a reference for this class.
Question 22. What Are Sub-elements Of The Feed Element?

Answer :

The "feed" detail has the following sub-factors defined:

<author> - Specifying the personal information approximately an author of the contents furnished in this feed. A feed detail might also have 0, one or greater creator sub-factors.
<category> - Specifying the class records of the contents supplied in this feed. A feed detail can also have 0, one or more category sub-factors.
<contributor> - Specifying the personal statistics approximately a contributor of the contents furnished in this feed. A feed detail may additionally have zero, one or more contributor sub-factors.
<generator> - Specifying the facts about the software used to generate this feed. A feed detail may additionally have zero or one generator sub-element.
<icon> - Specifying the URL area of an icon photo that identifies this feed. A feed element might also have 0 or one icon sub-detail.
<logo> - Specifying the URL vicinity of an emblem photo that identifies this feed. A feed element may have zero or one logo sub-detail.
<id> - Specifying a URI that universally and uniquely identifies this feed. A feed detail must precisely one identity sub-detail.
<link> - Specifying a URL location of a Web page as a reference to this feed. A feed detail may have 0, one or extra link sub-elements. However, at least one link sub-detail with rel="self" is suggested.
<rights> - Specifying the facts approximately the copyrights for this feed. A feed detail may have zero or one rights sub-detail.
<subtitle> - Specifying a description or a subtitle for this feed. A feed detail may additionally have zero or one subtitle sub-element.
<title> - Specifying a identify for this feed. A feed detail should have precisely one name sub-detail.
<updated> - Specifying a time stamp of when this feed turned into up to date. A feed detail must have exactly one up to date sub-element.
<entry> - Specifying an access of a feed. A feed element should have one or extra entry sub-factors.
Question 23. What Is Feedreader?

Answer :

Feedreader is a loose light-weight aggregator that helps RSS and ATOM codecs. FeedReader runs on Windows structures. Feedreader's functionality is targeted on the primary project - studying and organizing RSS feeds and providing seamless user experience. Feedreader installation file is beneath 3.5MB. Feedreader is unfastened and open source. Feedreader is absolutely customizable software.

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Question 24. What Is Blogbridge?

Answer :

Blogbridge is a unfastened open source and multi-platform computing device RSS reader. BlogBridge is a blog, feed and RSS aggregator for "information-junkies." While there are other aggregators out there, BlogBridge is designed for those who are required to observe masses of feeds, now not 10 or 20, however 2 hundred or 400. You can not read that a lot, so BlogBridge gives you lots of ways to arrange, sort thru, skim and find out what's crucial to you on this avalanche of records.

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Question 25. What Is A Desktop Rss Aggregator?

Answer :

A desktop RSS aggregator is a special RSS aggregator which you have down load and deploy it on your pc.

Examples of computer RSS aggregators are:

FeedReader - A free open-source computer aggregator that supports RSS and Atom formats. FeedReader runs on Windows systems.
Liferea - A unfastened open supply computing device RSS reader. Liferea is designed for Linux structures.
BlogBridge - A free open supply and multi-platform desktop RSS reader. BlogBridge is a Java software.
Question 26. What Is A Rss Aggregator?

Answer :

A RSS aggregator, also known as RSS reader, is software program application that allows you to enroll in many RSS feeds from diverse assets and read them in a single vicinity. A RSS aggregator generally gives a big list of RSS feeds from popular information carriers. But it also lets in you to enter the URL of a particular RSS feed that you are fascinated. 

Question 27. What Is An Online Rss Aggregator?

Answer :

An on line RSS aggregator is a Website that serves you as a RSS aggregator. Once you have got registered an online RSS aggregator, you can get right of entry to it from any pc at the Internet. 

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Question 28. How To Generate A Feed Title Element?

Answer :

The <title> detail is a required sub-element of the <feed> element. The identify detail have to include a short however human readable name of the feed file. You ought to observe the same rules on Web web page title factors to generate your Atom feed identify factors.

One method is to use the equal name as the Web web page that your Atom feed is based on. For example, if your Web website online offers a Web page for the maximum popular FAQ entries for Webmasters. That Web web page has a identify known as: "The Most Popular FAQ Entries for Webmasters". Now you need to generate an Atom feed for that Web web page. Obviously, you ought to the identical title as that page:

 <title>The Most Popular FAQ Entries for Webmasters</title>

Question 29. How To Generate A Feed Updated Element?

Answer :

The element is a required sub-element of the element. The Atom specification requires that you provide a records and a time of while this feed turned into updated. There is not any trouble to realize the information and time for this detail. But you need to be aware of the layout of ways the date and time need to be targeted.

Atom specification calls for you to use the layout defined in RFC 3393 for the replace element. So you must one of the following two codecs described in RFC 3339:

yyyy-mm-ddThh:mm:ss.CcZ, where T is a delimiter, and Z indicates that is a UTC time price. For example: 2017-08-12T23:20:50.52Z.

Yyyy-mm-ddThh:mm:ss.Cczzzzz, where T is a delimiter, and zzzzz is a time zone modifier like -08:00, that's 8 hours behind UTC. For instance: 2017-08-12T15:20:50.Fifty two-08:00.

Question 30. What Is The Structure Of Atom Feed Documents?

Answer :

An Atom feed record ought to have a root element called "feed". Within inside the "feed" element, one or more "entry" factors are enclosed. The excessive stage structure of an Atom feed file looks like:

<?Xml version="1.0" encoding="utf-8"?>
<feed xmlns="http://www.W3.Org/2005/Atom">
 (different feed sub-factors)
 <entry>
  ...
 </entry>
 <entry>
  ...
 </entry>
 (extra access elements)
</feed>

Question 31. Why Create Rss?

Answer :

RSS is a totally robust technology used to show modern facts from numerous resources.
RSS can be taken into consideration as the maximum proper trendy to publish information.
RSS may be used to growth web page site visitors considering that special contextual facts may be displayed.
RSS is straightforward to create. RSS can be used as a supply of profits at the web page as well.
Allows consumer to subscribe or unsubscribe content material coming from one-of-a-kind resources in a easy way.
Question 32. Explain Child Elements Of <channel>?

Answer :

Child elements of channel has 3 required toddler elements:

<title> which defines the name of the channel like a domestic web page.
<link> which defines the link to the channel.
<description> which describes the channel.
Other than these there are child factors like:

<category> specifies a class of a feed
<copyright> notifies about copyrighted cloth
<image> allows an photo to be displayed while aggregators present a feed
<language> specifies the language used to jot down a report
Question 33. What Are The Benefits To Rss?

Answer :

Ability to submit modern updates to the readers.
RSS presentations the information and headlines to overwhelm the person. If the consumer wants details, he can click on on the link of the real content material.
RSS has the capacity to control the drift of statistics customers acquire
If the consumer feels that the content nice is not appropriate, he just needs to get rid of the feed from the RSS reader to keep away from any content material being study from that source.
Allows user to experiment facts from extraordinary sources.
Can be generally used for climate reports, blogs, headlines, discounts.
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Question 34. Explain The Disadvantages Of Rss?

Answer :

Graphics and photographs aren't supported with the aid of ALL RSS feeds.
RSS feeds don’t display the actual URL or name of the website. This may confuse the person.
Publishers can’t decide the quantity of customers who should have subscribed the usage of its feed.
Publishers can't realize the cause why a few feeds had been unsubscribed.
Creates extra traffic at the site and server.
Finding RSS feeds may be tough as they will not seem in seek effects.