Explanation:
The column ISSPECIFIED displays the value TRUE for the parameters specified in the SPFILE parameter file.
Incorrect Answers:
1: This column does not show the value of the parameter itself.
2: The parameters are specified in the SPFILE parameter file, not in the PFILE parameter file.
4: These changes will be saved in the SPFILE parameter file, so they will be active after instance restart also.
Reference:
OCP Oracle9i Database: New Features for Administrators, Daniel Benjamin, p. 80-83
Chapter 2: Availability Enhancements
Oracle 9i New Features, Robert Freeman, p. 35-36
Chapter 1: Oracle9i Database Administration and Management Features

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