DBMS-Object Oriented Database
DBMS-Object Oriented Database
11. Semantic Data Model (SDM) was developed by
- M. Hammer and D McLeod.
- M. Hammer
- D. McLeod
- E.F. Codd.
12. Object-oriented data models(OODMs) and object-relation
- first-generation DBMs.
- second-generation DBMSs
- third-generation DBMSs
- none of these
14. Which of the following is an OO feature ?
- Polymorphism
- Inheritance
- Abstraction
- all of these
16. OO concepts first appeared in programming languages such as
- Ada.
- Algol
- SIMULA.
- All of these
17. A class is a collection of
- similar objects
- similar objects withh shared attributes.
- similar objects with shared attributes and behavior
- None of these
18. Today, OO concepts are applied in the areas of database such as
- software engineering
- knoledge base.
- artificial intelligence.
- All of these.
19. An association between classes or objects may be a
- one-to-one
- many-to-one
- many-to-many
- All of these
20. OODBMSs have
- enriched modelling capabilities.
- more expressive query languages.
- support for schema evolution
- All of these.