Packaged data models can reduce implementation times and costs. False True TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following database activities require a specific knowledge of a DBMS? Enterprise modeling Physical database design and definition Conceptual data modeling Logical database design TRUE ANSWER : ? YOUR ANSWER : ?
In enterprise data modeling, which is incorrect? You describe the data needed at a very high level of abstraction. You review current systems. You plan one or more database development projects. You implement the new database. TRUE ANSWER : ? YOUR ANSWER : ?
User views are included as part of which schema? Conceptual External Internal None of these TRUE ANSWER : ? YOUR ANSWER : ?
The first step in database development is which of the following? Enterprise data modeling Logical database design Physical database design and definition Database Implementation TRUE ANSWER : ? YOUR ANSWER : ?
Which is not a type of data management technology? Object-oriented Relational Dimensional Rational TRUE ANSWER : ? YOUR ANSWER : ?
Functional decomposition is the process of breaking down the functions of an organization into greater levels of detail. False True TRUE ANSWER : ? YOUR ANSWER : ?
A conceptual schema is usually depicted in graphical format using E-R or object-modeling notations. True False TRUE ANSWER : ? YOUR ANSWER : ?
With an enterprise data model, it is much easier to build applications because you know exactly what data exist and what needs to be added. True False TRUE ANSWER : ? YOUR ANSWER : ?
Whose role is it to determine the requirements and design for a database? Both A and B Database administrators Database analysts Neither A or B TRUE ANSWER : ? YOUR ANSWER : ?