1Z0-034 · Question #74
Which two statements about Oracle Direct Network File System (NFS) are true? (Choose two.)
The correct answer is A. It bypasses the OS file system cache. E. Oracle Disk Manager can manage NFS on its own, without using the operating system kernel. Direct NFS provides faster performance that what can be provided by the operating system's NFS driver as Oracle bypasses the operating system and generates exactly the requests it needs (no user configuration or tuning required). Data is cached just once in user space, which…
Question
Which two statements about Oracle Direct Network File System (NFS) are true? (Choose two.)
Options
- AIt bypasses the OS file system cache.
- BA separate NFS interface is required for use across Linux, UNIX, and Windows platforms.
- CIt uses the operating system kernel NFS layer for user tasks and network communication
- DFile systems need not be mounted by the kernel NFS system when being served through Direct
- EOracle Disk Manager can manage NFS on its own, without using the operating system kernel
How the community answered
(36 responses)- A72% (26)
- B8% (3)
- C17% (6)
- D3% (1)
Explanation
Direct NFS provides faster performance that what can be provided by the operating system's NFS driver as Oracle bypasses the operating system and generates exactly the requests it needs (no user configuration or tuning required). Data is cached just once in user space, which saves memory (no second copy in kernel space). Performance is further improved by load balancing across multiple network interfaces (if available).
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