ZYX COMPANY
Observe the ER diagram for the ZYX COMPANY:

This ER diagram will be used for the following questions citing ZYX Company ER Diagram.
-Which of the following is true according to the ZYX Company ER diagram?
A)A customer can be signed up by many employees and he or she has to be signed up by at least one employee
B)A customer can be signed up by one employee or he or she does not have to be signed up by any employees
C)Each customer is signed up by exactly one employee
D)Customers are not signed up by employees

Question

ZYX COMPANY
Observe the ER diagram for the ZYX COMPANY:
 
This ER diagram will be used for the following questions citing ZYX Company ER Diagram.
-Which of the following is true according to the ZYX Company ER diagram?
A)A customer can be signed up by many employees and he or she has to be signed up by at least one employee 
B)A customer can be signed up by one employee or he or she does not have to be signed up by any employees 
C)Each customer is signed up by exactly one employee 
D)Customers are not signed up by employees

Quizplus · Accepted Answer

According to the ZYX Company ER diagram, each customer is signed up by exactly one employee, as shown by the one-to-many relationship between Employee and Customer entities, where Employee is the one and Customer is the many. Therefore, option C is the correct choice. Options A and B are incorrect because they suggest that a customer can be signed up by multiple employees or no employees at all, which is not supported by the ER diagram. Option D is also incorrect because the ER diagram clearly shows the relationship between Employee and Customer entities.

ZYX COMPANY Observe the ER Diagram for the ZYX COMPANY