Copies of each database record or page after it was changed by a transaction that are saved for use in database recovery are called…..
a) before images
b) type of operation
c) pointers
d) permissions
Which of the following cannot be enforced in the database or application programs?
a) processing rights
b) security
c) processing responsibilities
d) transaction isolation
Which of the following are granted to the user to perform the required task?
a) privileges
b) views
c) backup
d) integrity
A user who creates an object is known as
a) privileges
b) ownership
c) backup
d) integrity
How many types of recovery?
a) one
b) two
c) three
d) four
Explanation: recovery by reprocessing, recovery by rollback
