Question 11 :
Backward recovery is used to reverse the changes made by transactions that have aborted, or terminated abnormally.
Question 12 :
A disaster recovery plan does not need to include the shipment of database backups to other sites.
Question 13 :
With concurrent processing involving updates, a database with concurrency control will be compromised due to interference between users.
Question 14 :
Data modeling and database design are key responsibilities of data and data base administration.
Question 15 :
Incorrect data is easy to detect.