A workgroup typically comprises between 25 and 100 persons. False True TRUE ANSWER : ? YOUR ANSWER : ?
An enterprise data model is a relational model that shows the high-level entities for the organization and associations among those entities. True False TRUE ANSWER : ? YOUR ANSWER : ?
An advantage of the database approach is the creation of maximum data redundancy. False True TRUE ANSWER : ? YOUR ANSWER : ?
An enterprise data model is: a non-graphical model that shows the high-level entities for an organization. a graphical model that shows all entities for an organization. a graphical model that shows the high-level entities for an organization. a non-graphical model that shows the all entities for an organization. TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following is true for a relational database? It is difficult to access data. Complex programs have to be written for simple queries. All of these Data is represented by tables. TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following types of databases are the most common? Enterprise Personal Department Workgroup TRUE ANSWER : ? YOUR ANSWER : ?
Duplicate data often results in loss of data integrity because: data values may not agree. Both A & Neither A & the data formats may be inconsistent. TRUE ANSWER : ? YOUR ANSWER : ?
Data administrators are responsible for: writing application programs. physical database design. managing technical issues in the database environment. overall management of data resources in an organization. TRUE ANSWER : ? YOUR ANSWER : ?
Some advantages of the database approach include all, but: improved data consistency. program-data dependency. improved data sharing. minimal data redundancy. TRUE ANSWER : ? YOUR ANSWER : ?
Database management systems were first introduced in the 1950s. True False TRUE ANSWER : ? YOUR ANSWER : ?