DBMS-DBMS CONCEPT
DBMS-DBMS CONCEPT
31. Which of the following is characterstic of the data in a database?
- independent
- Secure
- shared
- all of these.
32. The name of the system database that contains descriptions of data in the database is
- data dictionary
- metadata
- table
- none of these
34. System catalog is a system-created database that describes:
- database objects
- data dictionary information
- user access information
- all of these
35. A file is a collection of related sequence of records:
- related records
- related fields
- related data items
- none of these
36. Relationships could be of the fillowing type:
- one-to-one relationship
- one-to-many relationships
- many-to-many relationships
- all of these.
37. In a file-oriented system there is:
- data inconsistency
- duplication of data
- data dependence
- all of these.
38. In a database system there is:
- increased productivity
- improved security
- economy of scale
- all of these
39. In a database system there is:
- Large size of DBMS
- increased overall costs
- increased complexity
- all of these .
40. IDS formed the basis for the:
- network model
- hierachical model
- relational model
- all of these