Exam_06 - EXAMINATIONS 2006 END-YEAR COMP 442 ISSUES IN...

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EXAMINATIONS 2006 END-YEAR COMP 442 ISSUES IN DATABASE AND INFORMATION SYSTEMS Time Allowed: 3 Hours (180 minutes) Instructions: Attempt all questions. There are 180 possible marks on the exam. Make sure your answers are clear and to the point. Non-programmable calculators without full alphabetic keys are permitted. Non-electronic foreign language dictionaries are permitted. Refer to the Appendix. No other reference material is allowed. Answer in the appropriate heavily outlined boxes or follow the instructions given in the questions. Question Topic Marks 1 Database Paradigms [15 marks] 2 Object-Relational Database Features [15 marks] 3 Row and Reference Types [12 marks] 4 XML DTD and XML Schema [10 marks] 5 Converting an XML Schema into a DTD [10 marks] 6 Identity Constraints [18 marks] 7 XQuery and XUpdate [25 marks] 8 XML Functional Dependencies [15 marks] 9 Relational and XML Normal Forms [40 marks] 10 Publishing Relational Data as XML [20 marks]
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COMP 442 continued 2 Question 1 Database Paradigms [15 marks] The three main database paradigms today are: relational, object-oriented, and object-relational paradigm. a) [5 marks] Describe the main features of the relational database paradigm and relational databases. ANSWER b) [5 marks] Describe the main features of the object-oriented database paradigm and object-oriented databases. ANSWER
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COMP 442 continued 3 c) [5 marks] Describe the main features of the object-relational database paradigm and object-relational databases. ANSWER
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COMP 442 continued 4 Question 2. Object-Relational Database Features [15 marks] Object-relational databases introduce a number of object-oriented features into relational databases. a) [5 marks] List the object-oriented features of object-relational databases. ANSWER b) [10 marks] Of the features you listed in the answer to question above, which one you consider the most important? Justify your answer. ANSWER
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continued 5 SPARE PAGE FOR EXTRA ANSWERS Cross out rough working that you do not want marked. Specify the question number for work you do want marked.
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Exam_06 - EXAMINATIONS 2006 END-YEAR COMP 442 ISSUES IN...

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