1. What is the purpose of database administration?

2. Explain how database administration tasks vary with the size and complexity of the database.

3. What are two interpretations of the abbreviation DBA?

4. What is the purpose of concurrency control? What is throughput, and how is concurrency control related to throughput?

5. What is the goal of a database security system?

6. Explain the meaning of the word inappropriately in the phrase “one user’s work does not inappropriately influence another user’s work.”

7. Explain the major trade-off that exists in concurrency control.

8. Describe what an atomic transaction is, and explain why atomicity is important.

9. Explain the difference between concurrent transactions and simultaneous transactions. How many CPUs are required for simultaneous transactions?

10. Give an example, other than the one in this text, of the lost update problem.