Explanation:
You can make a shared server-side initialization parameter file available to all instances of a Real Application Clusters database by including an SPFILE parameter in each instance-specific initialization file. You still have to store a copy of the initialization parameter file on each node to facilitate startup of the instances. You can avoid distributing copies by converting this initialization parameter file into a Server Parameter File (SPFILE). Then you put the one parameter, as shown here, in the initialization parameter file for each instance:
spfile = oracle/home:/config/spfile
Incorrect Answers:
2: You don’t need to create an SPFILE copy on each client from which the instance will be started.
3: It is not required to store the SPFILE in a raw partition with a vendor-specific location and name.
4: You cannot create the SPFILE on the client.
Reference:
OCP Oracle9i Database: New Features for Administrators, Daniel Benjamin, p. 227-230
Chapter 4: Performance and Scalability Enhancements
Oracle 9i New Features, Robert Freeman, p. 188-192
Chapter 7: Oracle9i Real Application Clusters

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