Answer:
Data integrity refers to how accurate and consistent the data in a database is.
Data independence refers to the separation between data and the application in which it is being used.
Data Redundancy refers to having the exact same data at different places in the database. Data redundancy Increases the size of the database, creates Integrity problems, decreases efficiency and leads to anomalies.
Data security refers to how well the data in the database is protected from crashes, hacks andaccidental deletion.
Data maintenance refers to monthly, daily or hourly tasks that are run to fix errors within a database and prevent anomalies from occurring.