Web Data Management
Which of these share the same data model and supports the same functions and operators ?

XQuery 1.0.1 and XPath 2.0.1
XQuery 1.1 and XPath 2.0
XQuery 1.0 and XPath 2.0
XQuery 1.0 and XPath 1.0

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Web Data Management
There is a way of describing XML data, how?

XML uses a description node to describe data
XML uses XSL to describe data
XML uses a DTD to describe the data & XML uses a description node to describe data
XML uses a DTD to describe the data

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