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Which of the following sentences about attributes in XML is correct?
Attribute values must always be enclosed in quotation marks
Attributes can have multiple values
Attribute names can contain spaces
XML attributes are mandatory
<root>
Each element in an XML document must have a unique name
XML element names are case-insensitive
XML elements must be properly nested and closed
<?xml version="1.0" encoding="UTF-8"?> <Person> <Name>John</Name> <Age>30</Age> </Person> <Person><Name>Kim</Name><Age>55</Age></Person>
<?xml version="1.0" encoding="UTF-8"?> <Person> <Name>John</Name> <Age>30<Age> </Person>
<?xml version="1.0" encoding="UTF-8"?> <Person> <Name>John</Name> <Age>30</Age> </Person>
<?xml version="1.0" encoding="UTF-8"?> <Person Name="John" Age=30></Person>
XML is faster and more efficient than JSON
XML was designed especially for creating web pages
XML is a programming language like Java