VPD provides authorization at the level of specific tuples, or rows, of a relation, and is therefore said to be a _____________ mechanism.
A. Row-level authorization
B. Column-level authentication
C. Row-type authentication
D. Authorization security
Answer:A
VPD provides authorization at the level of specific tuples, or rows, of a relation, and is therefore said to be a _____________ mechanism.
A. Row-level authorization B. Column-level authentication C. Row-type authentication D. Authorization security
Explanation: Oracle Virtual Private Database (VPD) allows a system administrator to associate a function with a relation.