What connects the three types of schemas within the DBMS?
a) mapping
b) copying
c) layering
d) breaking
Which of the following function is responsible for database server?
a) database storage
b) data processing logic
c) data presentation logic
d) all of these
Which of the following includes client/server security?
a) physical security
b) change control security
c) secure all system
d) all of these
