11. Two transactions that run concurrently and generate results that are consistent with the results that would have occurred if they had run separately are referred to as serializable transactions.
A. True
B. False
12. The lost update problem is when User A reads data that have been processed by a portion of a transaction from User B.
A. True
B. False
13. The transaction log contains a copy of every database record (or page) after it has changed. These records are called before images.
A. True
B. False
14. Database administration refers to a function that applies to the entire organization.
A. True
B. False
15. Locks placed by command are implicit locks.
A. True
B. False