Which of the following are true about RAID levels 1, 3, 4, 5, and 6? 1. RAID

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Which of the following are true about RAID levels 1, 3, 4, 5, and 6?
1. RAID systems rely on redundancy to achieve high availability.
2. RAID 1 (mirroring) has the highest check disk overhead.
3. For small writes, RAID 3 (bit-interleaved parity) has the worst throughput.
4. For large writes, RAID 3, 4, and 5 have the same throughput.

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