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The PRIMARY purpose of implementing Redundant Array of Inexpensive Disks (RAID) level 1 in a
file server is to:

achieve performance improvement.

provide user authentication.

ensure availability of data.

ensure the confidentiality of data.

RAID level 1 provides disk mirroring. Data written to one disk are also written to another disk. Users
in the network access data in the first disk; if disk one fails, the second disk takes over. This
redundancy ensures the availability of datA. RAID level 1 does not improve performance, has no
relevance to authentication and does nothing to provide for data confidentiality.

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