You are designing a Windows Presentation Foundation (WPF) client application from which
employees will access a Web service. Business partners will access the Web service by
using proprietary client applications. You need to recommend a solution for ensuring the
integrity of data in the system. What should you recommend?
A.
Implement data validation at the service layer and reject invalid data.
B.
Implement data validation on the client and reject invalid data.
C.
Secure the Web service by using SSL.
D.
Encrypt data while storing it in the database.