MC Which statement is NOT CORRECT? An RDF data model consists of statements which are in subject-predicate-object format. incorrect RDF Schema enriches RDF by extending its vocabulary with classes and sub classes, properties and sub properties, and typing of properties. incorrect RDF allows to use database specific primary keys to identify resources. correct An RDF data model can be visualized as a directed, labeled graph. incorrect
MC Which statement is NOT CORRECT? Partial shredding of XML documents combines the document- and data-oriented approach and can use SQL views to reconstruct the entire XML document. incorrect The main advantage of a data-oriented approach to storing XML documents is that SQL queries can directly access and manipulate individual XML elements. incorrect The document-oriented approach to storing XML documents stores them as a BLOB or CLOB without the use of a DTD or XSD. incorrect When shredding XML documents, a DTD or XSD schema is always used. correct
MC Which of the following SQL/XML queries retrieves the following result:
21, <NY_supplier supID = '21'>
<name>Deliwines</name>
<status>20</status>
</NY_supplier>
32, <NY_supplier supID = '32'>
<name>Best Wines</name>
<status>90</status>
</NY_supplier>
... SELECT SUPNR, XMLElement("NY_supplier", XMLAtrributes (SUPNR AS "supID"), XMLElement("name",SUPNAME))
FROM SUPPLIER
WHERE SUPCITY = "New York" incorrect SELECT SUPNR, XMLElement("NY_supplier", XMLAtrributes (SUPNR AS "supID"), XMLForest(SUPNAME AS "name", SUPSTATUS AS "status"))
FROM SUPPLIER
WHERE SUPCITY = "New York" correct SELECT SUPNR, XMLElement("NY_supplier", XMLAtrributes (SUPNR AS "supID"), XMLForest(SUPNAME, SUPSTATUS)
FROM SUPPLIER
WHERE SUPCITY = "New York" incorrect SQL/XML cannot combine relational data with XML data. Therefore it is impossible to get the above result using SQL/XML. incorrect
MC Which statement is NOT CORRECT? An XML document can be represented as a tree. incorrect SQL/XML includes facilities for mapping relational data to XML. incorrect Various data types are supported in XML Schema such as xs:string, xs:short, xs:byte, etc. incorrect The SAX API represents an XML document as a tree in internal memory. correct
MC Given the following two statements:
i. Stored procedures can be extended with a WSDL interface and published as web services.
ii. Database systems can act both as web service providers and web service consumers.
Which statement is CORRECT? Both statements are not correct. incorrect Statement i is correct, but statement ii is not correct. incorrect Statement ii is correct but statement i is not correct. incorrect Both statements are correct. correct
MC Which statement is CORRECT? Using HTML, an XML document can be transformed to an XSLT document. incorrect Using DTD, an XML document can be transformed to an HTML document. incorrect Using XSLT, an XML document can be transformed to another XML document. correct Using XML, an XSLT document can be transformed to an XML document. incorrect
MC In an Enterprise Application Integration (EAI) context, asynchronous communication between objects and/or applications can be achieved by means of... Message Oriented Middleware (MOM) correct Remote Procedure Call (RPC) incorrect
MC Which statement is NOT CORRECT? Using HTML, an XML document can be transformed to an XSLT document. correct XPath is a simple, declarative language. incorrect SQL/XML includes facilities for mapping relational data to XML. incorrect SQL/XML introduces a new XML data type with a corresponding set of operators, and a set of functions to map relational data to XML. incorrect
MC Which statement is NOT CORRECT? The main advantage of a data-oriented approach to storing XML documents is that SQL queries can directly access and manipulate individual XML elements. incorrect Partial shredding of XML documents combines the document- and data-oriented approach and can use SQL views to reconstruct the entire XML document. incorrect The document-oriented approach to storing XML documents stores them as a BLOB or CLOB without the use of a DTD or XSD. incorrect When shredding XML documents, a DTD or XSD schema is always used. correct
MC In case an application needs to process large XML documents in a sequential way, it is recommended to use the: SAX API correct DOM API incorrect