As data objects and relationships among them are represented logically in an…….
a) relational data model
b) entity relational model
c) object-based model
d) semi-structured model
In an ER Model, what are objects also known as?
a) entity
b) relationship
c) bond
d) joint
Instance and Schemas are part of the……
a) data definition
b) data manipulation
c) data models
d) data redundancy
A………of a database is the data in it at a specific moment in time.
a) schema
b) instance
c) instant
d) scheme
The…………of a database describes its overall structure.
a) schema
b) instance
c) instant
d) scheme
What type of schema objects are there in schema?
a) primary key
b) foreign key
c) views
d) all of these
