单项选择题

Why is ProtecTIER’s HyperFactor technology superior to Data Domain’s hash-based deduplicationalgorithms？（）

A.it has only a single stage data inspection process
B.it utilizes industry standard SHA-1 and MD5 algorithms
C.it looks for identical matches comparing chunks of data
D.it first looks for similarity of data rather than exact matching

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Moving data is one of the most common causes of planned downtime. For which of the followingpurposes might the data migration function of the SAN Volume Controller be used？（）

A.when replacing an SVC node due to a failure
B.when migrating from a Windows OS to a Linux OS
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What are the storage component areas utilized in the IBM Storwize V7000？（）

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