Q. An array of disks is more likely to fail compared to a single disk. How is it that RAID arrays still manage to provide more data protection compared to a single disk?

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Q. Which of the following suffers from write hole problem?

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Q. If read and write performance is the only criterion, which would you choose?

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Q. Which one of the following is an invalid RAID level?

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Q. Which of the following RAID levels guarantees double disk failure protection?

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Q. Which of the following RAID levels are nested?

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Q. What is the name of raid module in a linux kernel?

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Q. What is the minimum number of disks needed for Raid level 5?

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Q. When one disk fails in a RAID 5 array with a hot spare, which one of the following statements is true?

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Q. When one disk fails in a RAID 5 array without a hot spare, which one of the following statements is true:

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Q. Which is the most common cause of soft errors in hardware?

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Q. If X is the MTBF of a system and Y is the failure rate of the system then which one is true?

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Q. Which one of the property is NOT a requirement for Fault Tolerance?

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Q. Which of the operating system architecture is suitable for FT based systems?

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Q. The common mechanism used to find latent failure in memory modules:

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Q. Which one of the availability criteria is optimal for carrier grade class systems?

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Q. MTTR is the best way to characterize

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Q. An “Inode” represents

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Q. Journaling is preferred for

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Q. Examples of Journaling filesystem

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