QUESTION 1 a) Describe the concept of data, information, and knowledge by giving ONE (1) example. (5 marks) b) Data abstraction is a way of classifying data models according to their degree. Explain TWO (2) classifications. (5 marks) c) Explain the data hierarchy in a database. Support your answer with ONE (1) example. (10 marks) QUESTION 2 a) Based on the Database Life Cycle (DBLC) methodology, there are four activities in the database initial study to develop a database system. Explain FOUR (4) activities in database initial study within the context of your database project. (8 marks) b) Today's trends show the high need for mobile databases. Discuss FIVE (5) needs of mobile database during Covid-19 pandemic. (5 marks) c) Explain data redundancy. Support your answer with the issues of data redundancy in database management system. (7 marks)
QUESTION 1 a) Describe the concept of data, information, and knowledge by giving ONE (1) example. (5 marks) b) Data abstraction is a way of classifying data models according to their degree. Explain TWO (2) classifications. (5 marks) c) Explain the data hierarchy in a
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