Question 1

Explain how linkages between relational tables are accomplished.

Accepted Answer

Tables that are logically related in the...

Question 2

What control maintains complete,current,and consistent data at all information processing units?

Accepted Answer

A)   deadlock control
B)   replication control
C)   concurrency control
D)   gateway controlE) A) and C)
F) B) and D)

Question 3

Distinguish between a database lockout and a deadlock.

Accepted Answer

To achieve data currency,simultaneous ac...

Question 4

There is more than one conceptual view of the database.

Accepted Answer

A) True 
 B)False

Question 5

Which procedure will prevent two end users from accessing the same data element at the same time?

Accepted Answer

A)   data redundancy
B)   data replication
C)   data lockout
D)   none of the aboveE) All of the above
F) B) and D)

Exam 9: Database Management Systems

What control maintains complete,current,and consistent data at all information processing units?