7. A database and a database management system are the same thing. True or False? O a. True O b. False 8. A collection of instructions and commands to define and describe data and relationship in a specific database is a a. database schema b. data definition language c. data model d. data manipulation language process of detecting and then correcting or deleting incomplete, incorrect, inaccurate, or irrelevant records that reside in a database is called b. data concurrency control c. data management c. data cleansing W 10. In the design of a database, it is not necessary to know how long the data must be stored. True or False? O a. True O b. False 11. The use of primary keys and foreign keys make it impossible to define relationships between the data in two tables of a relational database. True or False? a. True b. False 12. The purpose of data normalization is to 2. remove any inaccurate or incomplete data from the database b. insere never, more current data into the database c. eliminate data redundancies and ensure data dependencies make sense d. delete old, oosolete data from the database 3:29 19