Explanation:
Oracle Shared Server process requests from user in next order: the dispatcher places the request into the request queue; a shared server picks up the request from the request queue and processes the request; the shared server places the response in the response queue; he dispatcher returns the response to the user. Incorrect Answer:
4: The response is not handed off to the next available dispatcher, but the same dispatcher that sent request.
Reference:
OCP Oracle 9i Database: Fundamentals II Exam Guide, Rama Velpuri, p. 100-102
Chapter 5: Usage and Configuration of the Oracle Shared Server

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