XML

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1. What is the correct syntax of the declaration which defines the XML version?

<xml version="1.0"/>
<?xml ver="1.0" >
<?xml ver=1.0?>
<?xml version="1.0"?>

2. Which of the following is not true?

All XML tags must be upper case
All XML tags must be always closed
All XML elements must be nested
There should be only one root tag

3. For the XML parser to ignore a certain section of your XML document, which syntax is correct?
<CDATA> Text to be ignored </CDATA>
<![CDATA[ Text to be ignored ]]>
<xml:CDATA[ Text to be ignored ]>
<PCDATA> Text to be ignored </PCDATA>

4. Which of the following is most important when deciding on the data structure of a data mart?

XML data exchange standards
data access tools to be used
extract, transform, and load (ETL) tool to be used
metadata naming conventions