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.
Coding · Facts & stats
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.
The basics
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.
How many root elements must a well-formed XML document have?
AnswerExactly one
A well-formed XML document has a single root element containing all others.
Which is a valid empty element in XML?
Answer<item/>
An empty element can be written with a self-closing tag ending in />.
Expert level
What is XPath used for?
AnswerSelecting nodes in an XML document
XPath is a query language for navigating and selecting parts of an XML tree.
Which entity reference represents the ampersand character in XML?
Answer&
Because & starts entity references, a literal ampersand is written as &.
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