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(b) Check whether or not an XML document is well-formed.

Two important software that validates or process XML documents are as follows: 

1. XML Validator is the software packages that check the XML document as per the specified DTD and give you feedback about the document. 

Some XML validators are as follows: 

(a) W3C XML Validator 

(b) Tidy 

(c) XML. com’s 

(d) Brown University 

2. XML Parsers are the software packages, which are part of bigger applications that provide XML support. 

The role of an XML parser is to dissect a valid XML document to obtain actual data from the XML document. 

Some XML parsers are as follows: 

(a) SAXfSimple API for XML) 

(b) Expat 

(c) LT-XML etc.

(d) expat is an online XML parser not an online XML validator.

Prolog refers to the preface to an XML document.

An attribute is a name-value pair contained in the start tag of the element.

True XML is a meta-language, which is used to define other languages.

We need a/an XML parser to create and edit an XML document.

You can validate an XML document by using the XML validator and XML parser.

An element can be written without the end empty tag.

Using CSS with an XML Document

To link an XML document with a stylesheet perform the following steps:

1. Create an XML document and save it as a file with the .xml extension.

2. Create a stylesheet and save it as a file with the .css , extension.

3. Link both the files in the XML document by using the PI.

<?xml-stylesheet href = “test.css” type = “text/css”?>

e.g. The following is the CSS document:

People

{

background-color : light green;

display : block;

padding : 5px;

font-family : arial;

}

Person

{

background-color : pink;

border : 2px solid black;

display : block;

margin-bottom : 5px;

Name

{

font-family : bold;

display : block;

}

Birthdate

{

display : block;

}

Eyes

{

display : block;

}

Now, save it as test.css

The following is the XML document:

<?xml version="1.0" encoding="UTF-8"?>

<?xml-stylesheet type = "text/css" href = "test.css"?>

<People>

<Person>

<Name>A</Name>

<Birthdate>Jan 24, 1987</Birthdate>

<Eyes>Blue</Eiyes>

</Person>

<Person>

<Name>B</Name>

<Birthdate>Dec 15, 2009</Birthdate>

< Eyes >Brown</Eyes >

</Person>

</People>

Now, save it as test1.xml

(a) XML was designed to store and carry data, not to display Web pages.

(c) XML uses user-defined or custom tags.

(c) father is the root element.

(b) An XML document can be viewed in a Web browser.

<?xml version = "1.0"?>

<message date="7/6/2014">

<sender> Mohit </sender>

<receiversXreceiver> Amit </receiver>

<receiver> Saurabh </receiver> </receivers>

<text> Submitted Successfully </text>

</message>

Some languages are as follows:

1. Ink Markup Language (InkML)

2. Business Narrative Markup Language (BNML)

3. Financial Product Markup Language (FPML)

4. Virtual Human Markup Language (VHML) .

5. Architecture Description Markup Language (ADML)

6. Artificial Intelligence Markup Language (AIML)

7. Chess Markup Language (ChessML) etc.

True XML is used to describe data and storing data.

(c) XML uses a DTD to describe XML data.

In XML, attributes cannot contain multiple values.

(b) The empty tag name is followed by <name/>

<?xml version = "1.0">

<!DOCTYPE LIBRARY [

<!ELEMENT LIBRARY (BOOK +)>

<!ELEMENT BOOK (TITLE, AUTHOR, NOC)>

<!ELEMENT AUTHOR (NAME)>

<!ELEMENT TITLE (# PCDATA)>

<!ELEMENT NAME (# PCDATA)>

<!ELEMENT NOC (# PCDATA)>

<! ATTLIST NOC INHAND ISSUED CDATA # REQUIRED>

]>

(c) Document Type Declaration

False XML is not an extensible Meta Language. It is extensible Markup Language.

Full form of given terms are as follows:

1. XML Extensible Markup Language

2. DTD Document Type Declaration

3. SGML Standardised Generalised Markup Language

4. CSS Cascading Style Sheet

The combination of XML document, DTD and stylesheet is known as XML document system.

False XML document can have an unlimited number of child elements.

True The focus of XML is on the description of data, not its presentation.

True When a special character is used in an XML document, it expands to its full definition.

False The values of the attributes are enclosed in double quotation marks.

True The root element is an element that contains all other elements in XML document.

False DTD is used in XML documents.

True XML can run on all platforms, so it is platform-independent language.

False Names in XML must start either with a letter or underscore character.

True Pseudo attributes describe the overall document.

True The DTD are used in XML to specify its information and data to users.

DTD is used to define the structure of an XML document.

(a) The xml document is like a tree structure.

XML document structure can be divided into two parts as follows:

1. Well-formed XML document

2. Valid XML document

A valid XML document means to follow several terms, such as follows:

1. It is not only a well-formed document but as well as check error against a DTD.

2. It signifies that a document is well-formed.

3. It uses XML parser, XML validator for validation.

The XML code is

<?xml version = "1.0" encoding = "UTF-8"?>

<Employees>

<Employee>

<Name> Srishti </Name>

<Job> Programmer </Job>

<Department> Engineering </Department>

<Cubicle> 5E </Cubicle>

</Employee>

<Employee>

<Name> Aditi </Name>

<Job> Designer </Job>

<Department> Marketing </Department>

<Cubicle> 19T </Cubicle>

</Employee>

</Employees>

True A well-formed XML document means that the document has the correct XML syntax and follows proper grammar rules.