2. What is data redundancy, and which characteristics of the file system can lead to it?

3. What is data independence, and why is it lacking in file systems?

4. What is a DBMS, and what are its functions?

5. What is structural independence, and why is it important?

6. Explain the difference between data and information.

7. What is the role of a DBMS, and what are its advantages? What are its disadvantages?

9. What are the main components of a database system?