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Which three statements regarding the server parameter file （SPFILE） are true（）
A:An SPFILE is a binary file.
B:An SPFILE cannot reside on a client.
C:An SPFILE cannot contain static parameters.
D:An SPFILE can store changes persistently across instance restarts.
E:An SPFILE can be read by the database server， but it is not written to by the server.
F:An SPFILE must be created manually， before creating a database， even if you use the DatabaseConfiguration Assistant （DBCA） to create the database.

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出自：Oracle认证

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