How many parts of data model?
a) one
b) two
c) three
d) four
Explanation: structural part, manipulative part, set of integrity
How many types of data model?
a) one
b) two
c) three
d) four
Explanation: object-base model, record-base model, physical data model
How many types of record-base data model?
a) one
b) two
c) three
d) four
Explanation: hierarchical model, network model, relational model
Although all database professionals are concerned with performance, select database professional that is most likely to be concern database performance.
a) database administrator
b) application developer
c) website designer
d) database designer
Which data models create parent-child relationship between data elements and restrict each child to have just one parent?
a) hierarchical model
b) network
c) relational
d) object
What does IMS stand for?
a) increment management system
b) information management system
c) increased management system
d) none of these
