【单选题】
The database instance has the following parameter setting：<br /> OS_AUTHENT_PREFIX = OPS$ OS_ROLES = FALSE REMOTE_OS_AUTHENT = FALSE<br /> REMOTE_OS_ROLES = FALSE TIMED_OS_STATISTICS = 0 You have a local operating system user SKD.You create a database user OPS$SKD， and then assign external authentication. The user OPS$SKD has theCREATE SESSION privilege. <br /> What would you achieve by the above process（）
A、The database user OPS$SKD will be able to administer the database.
B、The authentication detail for the database user OPS$SKD is recorded in the password file.
C、The local operating system user SKD will be able to access the database instance without specifying theusername and password.
D、The database user OPS$SKD has to login with the password of the local operating system user SKD toaccess the database instance.
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