Which of the following best describes the two-tier database architecture?
The user accesses a database server using a terminal.
The user interface, data-processing logic, database access and data validation functions are performed on a mainframe server.
The user interface and data validation functions are performed by the client whereas the data-processing logic is performed on a server.
The user interface and data-processing logic are performed by the client whereas the server handles database access and data validation functions.
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