of the data in the database. 11. Some of the important functions of the database guarantee the and the a integrity, anomaly b. integrity, consistency C. integrity, variability d. integrity, security 12. Which of the following is NOT emphasized when designing a transactional database? a. Data integrity b. Operational speed Use of historical data d. Ad hoc querying C. 13. DBMS recovery management deals with a. restoring the database after a failure. b. fixing a bad sector in the disk. C. recovering passwords forgotten by users. d. getting computers back online after a power outage. constructs. 14. A database model is a collection of a. physical b. technical c. logical d related 15. Each United States President may be associated with many Congresses, and any given Congress may serve with more than one President (for example, the Congress that served both J.F. Kennedy and L.B. Johnson). This is an example of which kind of relationship? a. 1:1 b. 1:M M:N d. M:1 c. in which data are stored. 16. The user perceives the relational database as a collection of a. records b. sets C. rows d. tables 17. Structural independence exists when we are able to make changes in the database structure without affecting the DBMS's ability to access the a. files. b. data. database. d. tree structure. c. Assignment 3 Page 2 Version 1 18. Which of the following is NOT a component of the E-R data model? a. Process b. Entity c. Attribute d. Relationship 19. Each entity has certain characteristics known as a data b. tables records d. attributes c. 20. In the relational model, a grouping of related entities becomes a(n) a. class type. b. object group c. entity instance. d. entity set. terminology 21. The terms FILE, RECORD, and FIELD have their origin in a. set theory b. relational database file system d. COBOL programming c