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. a. True. b. False.

a. True

Explanation:

The three tiers in a three-tier architecture are:

Presentation Tier: Occupies the top level and displays information related to services available on a website. This tier communicates with other tiers by sending results to the browser and other tiers in the network.

Middle Tier: Also called the application tier, logic tier, business logic or logic tier, this tier is pulled from the presentation tier. It controls application functionality by performing detailed processing.

Data Tier: Houses database servers where information is stored and retrieved. Data in this tier is kept independent of application servers or business logic.