Question

which of the following is a key part of physical design in an entity relationship model? a.) this model provides a bird's eye view of the data environment so that it is easy to understand. b.) this model will have the same design regardless of what relational database management system it's for. c.) this model is both hardware and database management software dependent. d.) this model adds all of the attributes for each entity.

Answer 1

The key part of physical design in an entity relationship model is that this model is both hardware and database management software dependent (option c).

Step-by-step explanation:

The key part of physical design in an entity relationship model is that this model is both hardware and database management software dependent .

Physical design in an entity relationship model involves determining the specifics of how the database will be implemented on the physical hardware and software. This includes considerations such as the choice of hardware components, database management software, and how the database will be stored and accessed.

For example, the physical design might involve deciding whether to use solid-state drives or hard disk drives for storage, or whether to use a specific database management system like MySQL or Oracle.