11. The three-tier architecture includes which of the following?

A. Three server layers
B. A client layer and two server layers
C. Two client layers and one server layer
D. Three client layers

12. Which of the following is true concerning the mainframe?

A. It is the same thing as client/server.
B. Requires someone to decide which code should be on the workstation or the server.
C. Mission-critical systems have tended to remain there.
D. All of the above.

13. A server cannot serve on which of the following levels?

A. Client Layer
B. Business Layer
C. Database Layer
D. All of the above.

14. The three different application logic components are which of the following?

A. Presentation, Client, and Storage
B. Presentation, Client, and Processing
C. Presentation, Processing, and Storage
D. Presentation, Processing, and Network

15. A database server is responsible for which of the following?

A. Database storage
B. Data processing logic
C. Data presentation logic
D. All of the above.