FIRST PERIODICAL TEST IN COMPUTER 10

1. Data fields IS also known as _______ .

• data row
• data colum
• data column
• data roww

2. Data records is also known as __________ .

• data row
• data colum
• data column
• data roww

3. This element contains multiple data records, and each data record contains multiple data fields.

• data row
• data colum
• data column
• data table

4. In non-database systems, each application needs to have its own files.

• Data can be shared
• Inconsistencies can be avoided
• Redundancy can be reduced
• Standards can be enforced

5. With a centralized control of the database, you can ensure that all applicable standards set by all users are observed in the representation of the data.

• Data can be shared
• Inconsistencies can be avoided
• Redundancy can be reduced
• Standards can be enforced

6. Data becomes redundant and inconsistent because the same data are stored separately in different units.

• Data can be shared
• Inconsistencies can be avoided
• Redundancy can be reduced
• Standards can be enforced

7. Because non-database tend to be kept in separate files, storing the same information in different locations can lead to inconsistencies because files are updated and retrieved using different sources and at different times.

• Data can be shared
• Inconsistencies can be avoided
• Redundancy can be reduced
• Standards can be enforced

8. Since the databases are centralized, the database administrator can ensure the access to the database.

• Security restrictions can be applied
• Inconsistencies can be avoided
• Redundancy can be reduced
• Standards can be enforced

9. Database integrity is ensuring that the data in the database is accurate. Since databases of different applications are integrated, integrity checks can be carried out whenever any data update operations are attempted.

• Security restrictions can be applied
• Inconsistencies can be avoided
• Integrity can be maintained
• Standards can be enforced

10. Knowing the overall requirement of an organization, as opposed to the individual requirement of a user, enables the system developers and administrator to structure the system so as to provide an overall service that is best for the organization.

• Security restrictions can be applied
• Inconsistencies can be avoided
• Integrity can be maintained
• Conflicting requirements can be balanced