WGU C175 D426 Data Management Foundations OA Exam with Questions and Answers

WGU C175 D426 Data Management Foundations OA Exam with Questions and Answers Database models were developed to _____? ANSWER model real-world events or conditions The entity integrity rule requires: ANSWER All primary keys must be unique A table is perceived as a ______. ANSWER Two-dimensional structure A table can be logically connected to another table by defining a _____. ANSWER common attribute We can describe a link by observing that ____. ANSWER A primary key of one table appears again as a foreign key in a related table An attribute (or group of attributes) that uniquely identifies each entity in a table is called: ANSWER A superkey A foreign key must: ANSWER Match a primary key in a related table The ERD is used to graphically represent the ____ database model. ANSWER Conceptual