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XML facts & stats

7 fact-checked facts about XML, each with the reason behind it. 5 more are in today's round and join this page after it closes.

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The basics

What is XML mainly designed to do?

AnswerStore and transport structured data

XML describes data in a self-describing, plain-text format that programs can exchange.

What characters enclose XML tags?

AnswerAngle brackets < >

XML tags look like <name>, using angle brackets.

Going deeper

Are XML element names case-sensitive?

AnswerYes, <Note> and <note> are different

XML is case-sensitive, so opening and closing tags must match exactly.

Which organization published the XML standard?

AnswerW3C

The World Wide Web Consortium (W3C) published the XML 1.0 recommendation.

What does XSD stand for?

AnswerXML Schema Definition

An XSD file defines the allowed structure and data types of an XML document.

Expert level

Which entity reference represents the ampersand character in XML?

Answer&amp;

Because & starts entity references, a literal ampersand is written as &amp;.

In XML, what is a CDATA section?

AnswerText the parser does not treat as markup

Inside <![CDATA[ ... ]]>, characters like < and & are taken literally.

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