In the two-tier architecture of the client/server model, a client (tier one) communicates directly with the server (tier two). True or False?

In a client-server architecture with two tiers, I can't see how a malfunction of catastrophic proportions might occur. How can we solve this problem using a client-server architecture that has several layers?

Client-server architectures with only two layers contain a fatal error. What about a multi-layered client-server architecture?

A client-server architecture with two levels has a fatal fault. Is a multi-tier client-server design the answer to this conundrum?