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Which two statements about Oracle Direct Network File System (NFS) are true?（）
A:It bypasses the OS file system cache.
B:A separate NFS interface is required for use across Linux, UNIX, and Windows platforms.
C:It uses the operating system kernel NFS layer for user tasks and network communication modules.
D:File systems need not be mounted by the kernel NFS system when being served through Direct NFS.
E:Oracle Disk Manager can manage NFS on its own, without using the operating system kernel NFS driver.

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出自：Oracle认证

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