24-25 CS1840/CS2841: Internet Services Course Materials & Test Answers | moodle.royalholloway.ac.uk

Consider the following DTD (Document Type Definition) schema.


        <!ELEMENT schedule (event*)>
        <!ELEMENT event (name, date, location)>
        <!ELEMENT name (#PCDATA)>
        <!ELEMENT location (#PCDATA)>
        <!ELEMENT date (#PCDATA)>

Which of the following XML documents is not valid with respect to this schema?


      	<?xml version="1.0" encoding="UTF-8" ?>
        <schedule>
        <event>
        <name>Machine Learning Meetup</name>
        <date>2025-08-20</date>
        <location>London</location>
        </event>
        </schedule>


      	<?xml version="1.0" encoding="UTF-8" ?>
        <schedule></schedule>


      	<?xml version="1.0" encoding="UTF-8" ?>
        <schedule>
        <event>
        <name>XML Workshop</name>
        <date>2025-06-15</date>
        <location>New York</location>
        </event>
        <event>
        <name>Web Developers Forum</name>
        <date>2025-11-03</date>
        <location>Paris</location>
        </event>
        </schedule>


      	<?xml version="1.0" encoding="UTF-8" ?>
        <schedule>
        <event>
        <name>Data Science Conference</name>
        <location>San Francisco</location>
        <date>2025-09-10</date>
        </event>
        </schedule>

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Consider the following DTD (Document Type Definition) schema.


    <!ELEMENT book (title, author, price)>
		<!ELEMENT title (#PCDATA)>
		<!ELEMENT author (#PCDATA)>
		<!ELEMENT price (#PCDATA)>

Which of the following XML documents is valid with respect to this schema?


      	<?xml version="1.0" encoding="UTF-8" ?>
        <book>
        <author>John Doe</author>
        <title>XML Basics</title>
        <price>19.99</price>
        </book>


      	<?xml version="1.0" encoding="UTF-8" ?>
        <book>
        <title>XML Basics</title>
        <author>John Doe</author>
        <price>19.99</price>
        <publisher>XYZ Publishing</publisher>
        </book>


      	<?xml version="1.0" encoding="UTF-8" ?>
        <book>
        <title>XML Basics</title>
        <price>19.99</price>
        </book>


      	<?xml version="1.0" encoding="UTF-8" ?>
        <book>
        <title>XML Basics</title>
        <author>John Doe</author>
        <price>19.99</price>
        </book>

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24-25 CS1840/CS2841: Internet Services

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