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RDF Interview Questions & Answers - Learning Mode
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RDF Interview Questions & Answers - Learning Mode

The Resource Description Framework (RDF) is a family of World Wide Web Consortium (W3C) specifications originally designed as a metadata data model. RDF is a framework for describing resources on the web. RDF is designed to be read and understood by computers. RDF is not designed for being displayed to people. RDF is written in XML. RDF is a part of the W3C's Semantic Web Activity.

Try RDF Interview Questions & Answers - Exam Mode

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RDF Interview Questions & Answers - Learning Mode
Try RDF Interview Questions & Answers - Exam Mode
Question: Tell me about terms in RDF?

Answer: To describe the elements of container we have to talk about list of values attach with container.
In RDF we said all list of values members.To consider that,
We used container to store the things.
Things(not the list of values)that are contained by continer are told as members. Source: CoolInterview.com
Question: What is the RDF Schema?


Answer: We can also write RDF Schema in short RDFS.
Basically, We don't use RDF Schema allow for actual application-specific classes and properties.
We can say that RDF classes are same as classes thatwe defined in Object Oriented Programming Language. This enable resources to define the subclasses of class and instance of classes.
Example:
<?xml version="1.0"?>
<rdf:RDF
xmlns:rdf= "http://www.w3.org/1999/02/22-rdf-syntax-ns#"
xmlns:rdfs="http://www.w3.org/2000/01/rdf- Source: CoolInterview.com
Question: Why we use OWL?


Answer: Future aspect of OWL is that,
1. We use OWL for exact description of Web information.
2.Using OWl Web information can be processed through computers.
3.OWl also helps computers to integrate information from the web. Source: CoolInterview.com
Question: How can say OWL is Web Standard?


Answer: W3C(World Wide Web Consortium) has has recommended OWL as Web Standard in Feb 2004.
W3C recommendations are easily understand and accepted by industry.And web community also accepted as web standard. Source: CoolInterview.com
Question: How you define collection in RDF?


Answer: We use collecton to describe the groups that store only specifed members.We describe the collection using attribute rdf:parseType="Collection".
Example:
<?xml version="1.0"?>
<rdf:RDF
xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
xmlns:cd="http://r4r.in/cd#">
<rdf:Description
rdf:about="http://r4r.in/cd/Beatles">
<cd:artist rdf:parseType="Collection">
<rdf:Description rdf:about="http://r4r.in/cd/Beatles/George"/>
<rdf:Des Source: CoolInterview.com
Question: What is OWL?


Answer: OWL is stands for Web Ontology Language. It is an language which we used to process web application.
I have explain you OWL with using some points.
1. We placed OWL on top of RDF.
2. OWL is for processing information on the web.
3. We designed OWL to read only by computer not
by peoples.
4. OWL is written in XML language.
5. Also OWL has three sublanguages.
6. OWL is an W3C standard given by W3C.
Source: CoolInterview.com
Question: How use properties to define attribute?


Answer: We can also use property to define attribute like that,
<?xml version="1.0"?>

<rdf:RDF
xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
xmlns:cd="http://www.r4r.in/cd#">
<rdf:Description
rdf:about="http://www.r4r.in/cd/The Reader"
cd:artist="Kate Winslet" cd:country="USA"
cd:price="11.80"/>
</rdf:RDF>
Source: CoolInterview.com
Question: How OWL is different with RDF?


Answer: We can say that their is no much more difference b/w OWL and RDF.but main difference b/w both OWL and RDF is that OWl is an stronger lanuage whch has greate interpretability with machine than RDF.
Also OWL has a large collection than RDF.
Syntax of OWL is much stronger than RDF. Source: CoolInterview.com
Question: How to use Container element in RDF?


Answer: Using RDF container we can desribe the groups of things.Like: use to list artist of a movie, to create the list of author.
I have given you some RDF element(<Bag>,<Seq> and <Alt>)that are used to describe groups.

1. <rdf:Bag> Element: It is used to describe a list of values that is intended to be unordered.
<rdf:Bag> element can contain duplicate values.
Example:
<?xml version="1.0"?>
<rdf:RDF
xmlns:rdf="http://www.w3.org/1999/02/ Source: CoolInterview.com
Question: How to define term Ontology in Web Ontology Language(OWL)?



Answer: Ontology means to exact description of things and how to relate them.
In case of Web we can define Ontology as to exact description of web information and to define relationships b/w them(web information).
Source: CoolInterview.com
Question: Whar are the RDF rules?


Answer: To identify web identifiers(URIs) uses RDF.
Also using RDF we can describe resources with properties and their respected values.
Resource: resouces is anything that have a URI.Like: "http://www.r4r.co.in/RDF"
Property: It is a resource than can have name like: "author" or "homepage".
Property value: It is used to define the value of property. Like: "Vivek Kr. Agarwal" or "http://www.r4r.co.in"
Example: I define you RDF by using an example.
<?xml version="1.0"?>
<RDF Source: CoolInterview.com
Question: What is RDF Online Validator?


Answer: Using online RDF validator you can parse your RDF document,can also check your syntax and also to generate tabular and graphical view of our RDF document.
I have given you a example of RDF validator.
<?xml version="1.0"?>
<rdf:RDF
xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
xmlns:si="http://www.r4r.in/siteinfo#">
<rdf:Description rdf:about="http://www.r4r.co.in/RDF">
<si:author>Vivek Kr. Agarwal</si:author>
<si:homepag Source: CoolInterview.com
Question: Where we use RDF?


Answer: I have some places where we use RDF.
1.RDF is used to describe properties(like: price, availability,qualitiy etc.)
2.This is also used to describe the time schedules of web elements.
3.This is also used to describe some information about web pages like content,author,created and modified date.
4.Using this we can describe electronic libraries.
5.Using this we can describe the content for search engines.
6.Using this we can also describe content and rating for web pictures. Source: CoolInterview.com
Question: How you define elements in RDF?


Answer: Their are two main elements in RDF that are <RDF> and <Description> element. These element are use to identify the source.
1.<rdf:RDF> Element is an root element of RDF document which is use to identify XML document to be an RDF document.This element is also use to contain a reference of RDF namespace.
Syntax:
<?xml version="1.0"?>
<rdf:RDF
xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">
.
Write here description
.
</rdf:RDF> Source: CoolInterview.com
Question: How to use properties to define Resources?


Answer: We can also use properties as resource like that,
Example:
<?xml version="1.0"?>

<rdf:RDF
xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
xmlns:cd="http://www.r4r.in/cd#">
<rdf:Description
rdf:about="http://www.r4r.in/cd/The Reader">
<cd:artist rdf:resource="http://www.r4r.in/cd/winslet" />
.
.
.
</rdf:Description>
</rdf:RDF>
Source: CoolInterview.com

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