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VCE
Which term best defines a database system in which data records are stored with no structured relationships between the records?
A. Flat-file database
B. Relational database
C. Distributed database
D. Object-oriented database
Which type of relational integrity is violated if a primary key in a database has a null value?
A. Entity integrity
B. Domain integrity
C. Domain constraints
D. Referential integrity
Which type of entity must reference another entity for its data to be meaningful?
A. Weak
B. Strong
C. Foreign
D. Primary