Which two statements are true about the Oracle Direct Network File system (DNFS)?（）
- A It utilizes the OS file system cache.
- B A traditional NFS mount is not required when using Direct NFS.
- C Oracle Disk Manager can manage NFS on its own, without using the operating kernel NFS driver.
- D Direct NFS is available only in UNIX platforms.
- E Direct NFS can load-balance I/O traffic across multiple network adapters.