The older logical database model that organizes data in a treelike structure……..
a) hierarchical
b) network
c) relational
d) object
Which of the following are advantages of relational database model?
a) data integrity
b) data consistency
c) easy data retrieval
d) all of these
When did hierarchical database is very efficient?
a) large amount of data
b) little amount of data
c) many transactions
d) both a & c
Which of the following are functions of DBMS?
a) data processing
b) concurrency support
c) recovery services
d) all of these
What does DCM stand for?
a) data command manager
b) data combine manager
c) data communication manager
d) none of these
Which of the following is not a major area for database administrator?
a) planning
b) programming
c) implementation
d) security
