A three-tier design includes a middle layer between the client and server that processes the client requests and translates them into data access commands that can be understood and carried out by the server.

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This statement is true. The middle layer in a three-tier design is often referred to as the application tier or the business logic tier, and it is responsible for processing client requests, performing necessary calculations or validations, and translating them into data access commands that can be executed by the server.

A Three-Tier Design Includes a Middle Layer Between the Client