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Written Assignment 3
1. Describe and distinguish between data, information, and
Written Assignment 3
1. Describe and distinguish between data, information, and knowledge (minimum 150 words).
2. Describe and explain what big data refers to with examples (minimum 150 words).
3. Discuss the problems of redundant data and data integrity in a dataset and ways to address them with examples.
4. What is a relational database? How is the data organized in it? Discuss with the aid of a small database (other than the School database described in Chapter 5) that has at least two related tables in it (minimum 150 words).
5. What is the purpose of a primary key in a table? What characteristics does a table field need to have in order to qualify as a candidate for it?
6. What is the purpose of normalization in database design? Explain with the help of the database example you described in Question 4 (minimum 150 words).
7. What is the importance of defining the data type of a table field? Discuss with examples of it (minimum 150 words).
8. Give an example of an SQL query that would retrieve all the data from a table in the database example you described in Question 4.
9. Discuss the concept of data warehouse and describe three advantages of it (minimum 150 words).
10. Discuss the concept of knowledge management (minimum 150 words).
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