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Which kind of failure loses its data in head crash or failure during a transfer operation.

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Which kind of failure loses its data in head crash or failure during a transfer operation. (a) Transaction failure (b) System crash (c) Disk failure (d) All of the mentioned The question was asked by my college director while I was bunking the class. Origin of the question is Failure Classification in division Recovery System of Database Management Select the correct answer from above options Interview Questions and Answers, Database Interview Questions and Answers for Freshers and Experience

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Right choice is (c) Disk failure The best explanation: Copies of the data on other disks, or archival backups on tertiary media, such as DVD or tapes, are used to recover from the failure.

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