单项选择题

WhyisProtecTIER’sHyperFactortechnologysuperiortoDataDom……

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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A.InfoCenter web site
B.Announcement letter
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