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At which of the following levels is the Sun Oracle Database Machine considered to be "Fault Tolerant"?

  1. Database, Storage, and Network

  2. Database and Storage

  3. Database only

  4. Database and Network

  5. Fault tolerance will be fully available in the next version of the Sun Oracle Database Machine.
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A Correct answer
Explanation

The Sun Oracle Database Machine is fault tolerant at three levels: Database (via RAC, ASM, and Data Guard), Storage (via ASM disk mirroring and cell redundancy), and Network (via multiple network paths and InfiniBand redundancy). This comprehensive fault tolerance differentiates Exadata from competitors who may only address one or two layers.

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