XML

A language that allows us to create or define other languages. Here we have listed all the most asked Interview questions, which can help you to ace the job interview.

Q.1 What do you mean by XML data binding?

XML data binding points to the writing and reading of XML data utilizing a programming language. XML data binding normally occurs practicing a class library (like C++, Java ), specifically for the given XML data format.

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Q.2 What is the use of XML data binding?

With the help of XML data binding, applications can immediately access the needed data with the XML file’s built APIs rather than relying on the (DOM) Document Object Model to recover the data from the XML file.

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Q.3 Which is a looping type of conditional statement?

The For loop and the While loop are the 2 most popular types of conditional loops in most programming languages.

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Q.4 What importance does XSLT hold in XML?

XSLT or Extensible Style sheet Language Transformation is practiced to convert an XML document to HTML ere it is displayed to any browser.

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Q.5 What is an XML encoding error?

XML Encoding error is carried out as an ‘error output’ when the validator finds anything wrong with the file’s encoding.

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Q.6 What are the 2 types of XML encoding errors?

The Invalid character is found in the text. Switching within two different encodings.

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Q.7 Explain the structure of XML.

XML documents have a hierarchical tree framework which is known an XML tree. XML documents should include a root element. All components in an XML document can have text, sub-elements, and attributes.

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Q.8 What is Xpointer in XML?

Xpointer in XML enables hyperlinks to point to more particular parts of the XML documents or files.

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Q.9 Define an XML parser.

An XML parser is a software library that renders an interface for client applications to operate with the XML documents.

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Q.10 Define an attribute.

An attribute gives more or extra information about a component than otherwise.

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Q.11 What is DTD in XML?

DTD or Document Type Definition defines a document drafted in XML. XML declaration syntax is described in DTD. Naming custom rules of various types of components are also defined in DTD.

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Q.12 Who is accountable for XML?

XML is a reference of the W3C – World Wide Web Consortium and the construction is managed by the XML working group.

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Q.13 Explain XmlReader class.

The XmlrReader class defines a reader that gives noncached, fast, forward-only passage to the XML data.

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Q.14 Define ITR XML file.

ITR or we can say Income Tax Return, ITR XML file stands for an XML file that saves income tax information.

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Q.15 What are the XPath functions?

Numeric functions. Node functions. String functions. Boolean functions.

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Q.16 What is DOM? What is it used for?

DOM or Document Object Model is an Application Programming Interface that enables navigation by objects. Documents are treated as objects. DOM documents are created by the user or generated by a parser.

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Q.17 What are the special characters utilized in XML?

<, > and & are the special characters practiced in XML. These characters are practiced for making tags.

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Q.18 What is the main drawback of the DOM?

The major drawback is that a large part of memory is consumed by DOM.

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Q.19 Whether graphics can be practiced in XML? If so, How?

Yes, Graphics can be incorporated in XML by utilizing XPointer and XLink specifications. It maintains graphic file formats such as JPG, GIF, TIFF, EPS, PNG, CGM, and SVG.

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Q.20 What is the relation of SOAP with XML?

SOAP practices XML to determine a protocol for the change of information in distributed computing environments.

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Q.21 Tell us the three elements in SOAP.

It includes an envelope, a set of the encoding rules, and a convention for presenting remote procedure calls.

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Q.22 Explain XQuery.

XQuery was generated to query XML information which is nothing but SQL for database tables. XQuery is utilized to get the data from the XML file.

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Q.23 Explain the CDATA in XML.

CDATA or we can say character data. Characters like ‘>’ and ‘<’ are not enabled in XML. CDATA begins with . CDATA is unparsed character data that cannot be parsed by the XML parser.

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Q.24 What do XML editors check?

XML against schema XML against DTD XML Syntax color code XML standard open and close tags

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Q.25 Why XML is called ‘Extensible’?

The names of the XML tags can freely be chosen.

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Q.26 What is the need for an XML parser?

The goal of a parser is to transform XML into a readable code.

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Q.27 What is the utility of a Schema or a DTD?

to define the structure of XML documents

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Q.28 What is the difference between a DTD and a Schema?

XML Schema utilize an XML-based syntax, whereas DTDs have a unique syntax held over from SGML DTDs.

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Q.29 How can an empty element “PartNumber” be created in XSL?

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Q.30 What do you understand by a markup language?

Markup languages are created for the presentation of the text in several formats, and they can also be utilized for transporting and saving data. This markup language defines the code for formatting, style, and layout of data. This markup code is known as Tag. HTML and XML are Markup Languages.

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Q.31 What do you understand by XML?

XML or eXtensible Markup Language is a mild and extensible markup language. It is apprehended as a universal language for data on the web due to XML documents can be produced and used in any language. It is the universal standard for information interchange.

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Q.32 What are the standards of the language XML?

The (XML) Extensible Markup Language is a mild text-based format for rendering structured information: data, documents, books, invoices, configuration, transactions, and much more. It was originated from an older standard format known as SGML (ISO 8879), in order to be more fitting for Web use.

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Q.33 Does XML support user-defined tags?

Yes, the users can make their own tags in XML.

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Q.34 What are the features of XML?

Very quick to learn and implement XML files are text files, and no editor is needed Minimum and a restricted number of syntax rules in XML It is extensible, and it stipulates that structural rules of tags

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Q.35 How to comment in XML?

This syntax is employed as a comment in XML, and these comments don’t show up on the screen.

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Q.36 What are the naming rules in XML?

Names can include numbers, letters, and other types. Names cannot begin with a punctuation character or number. Names cannot begin with the letters xml (or XML, or Xml, etc) Names cannot accommodate spaces Any name can be utilized, no words are reserved.

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Q.37 Which is a valid string name in XML?

Component names must begin with an underscore or letter. Component names cannot start with the letters XML (or XML, or XML, etc.) Element names can include letters, underscores, hyphens, digits, and periods. Element names cannot include spaces.

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Q.38 What is the XML declaration tag?

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Q.39 Which tag is utilized to obtain the version of XML and the syntax?

Representing the XML version is very essential for every XML document and the platform requires to be defined in which it is working.

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Q.40 Can XML be used for multimedia purposes?

Yes, XML can be utilized for multimedia purposes by practicing SVG and SMIL.

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Q.41 What are the advantages of XML?

Simplicity Openness Extensibility Self-descriptive Scalable Fast access

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Q.42 Explain XPath.

XPath is an essential and core component of the XSLT standard. It is applied to traverse the components and attributes in an XML document. XPath is a W3C endorsement. It provides various types of expressions to recover relevant data from the XML document. It is the syntax for defining parts of an XML document.

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Q.43 Tell us the name of the python 2.x library to parse XML data.

XML.etree.ElementTree

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Q.44 What do you understand by SAX in XML?

Simple API for XML, SAX is an event-driven algorithm to parse XML documents with API.

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Q.45 Explain the conditional and looping statements.

Control flow and branching practicing keywords, such as for, if, and while. Within any plan, we can determine sections of code that either repeat in a loop or conditionally achieve. Loops use a while or for keywords, and conditional statements use if or switch.

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Q.46 State rules to be followed when we write an XML document.

All XML should have a root component. All tags have different start and end elements. All attribute contents are quoted. Empty elements are formatted correctly.

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Q.47 How are conditionals and loops distinctive?

Conditional statements with the customary comparison and boolean operators enable the production of alternative execution ways in the code. Loops provide reoccurred execution of the corresponding set of statements on all the objects within a series.

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Q.48 What is SVG and what is it used for?

SVG or Scalable Vector Graphics is an XML language that is practiced to showcase images, animations, 2D, and graphics from the XML code. Vector mathematical formulas are practice here to render the content.

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Q.49 Define XSL.

XSL stands for Extensible Stylesheet Language. It is one of the stylesheets for XML apart from (CSS) Cascading Style Sheets.

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Q.50 What Is SMIL?

SMIL or we can say Synchronized Multimedia Integration Language is an XML language that is utilized to integrate text, images, and other media for a presentation.

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Q.51 How do you make a style sheet in XSLT?

Select File > New > Other. In the New window, select XML > XSL. Click Next. Select the MyProject directory. In the File name field, type CDTitle. XSL and click Next. In the Select XML file page, select the CDTitle. XML file. This associates the CDTitle. XML file with the CDTitle. ... Click Finish.

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Q.52 What is XML DOM Document?

XML Document object describes the entire XML document, and it is the source of a document tree. It provides access to the complete XML document – Nodes and Elements, and it has its own properties.

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Q.53 What is a well-formed XML document?

A syntactically correct document is called a well-formed XML document.

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Q.54 What are the rules for a well-formed XML document?

It should have a closing tag. The closing tag must precisely match the open tag: XML is case-sensitive. All components must be incorporated within a single root tag. Child components must be closed within the parent tag.

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Q.55 Is XSLT outdated?

XSLT is pretty dead due to only a few champions still use it. However, there is no exact alternative for it. If we focus only on a single-use case, such as an example presenting HTML pages from semantic documents, we find more reliable tools.

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