AT&T 10:44 PM 47960.0. + TEST 2 DOCX-41 KB Close 25. To preserve Entity Integrity the primary key cannot have a null value AND if the primary key is a composite key (combination of two or more fields) none of the fields in the key can contain a null value. a. True b. False 26. Business Intelligence is built around processing small amounts of data and is the coolest field for any person to have. a. True b. False 27. In a database there are three (3) types of keys: Primary Key - a unique attribute for the record Secondary Key - a combination of two or more attributes representing the key Composite Key - a key which may not be unique, used to select a group of records a. True b. False 28. Text analytics is a way to structure the unstructured data AND turning qualitative material into quantitative material. a. True b. False 29. Big data is a strategy that permits organizations to cope with ever-increasing numbers of data from a myriad of sources both human generated and data generated via sensors of some type a. True b. False e Email Word G9save ks. task systems are used comprises the basis of human