Chapter 2Answers to Problems and Exercises1.Cellular Operator Database Figure 24 questions:a.Can a customer have an unlimited number of plans?
.b.Can a customer exist without a plan?
c.Is it possible to create a plan without knowing who the customer is?
d.Does the operator want to limit the types of handsets that can be linked to a specificplan type?
e.Is it possible to maintain data regarding a handset without connecting it to a plan?
f.Can a handset be associated with multiple plans?
g.Assume a handset type exists that can utilize multiple operating systems. Could thissituation be accommodated within the model included in Figure 24?