An enterprise uses Huawei's all-flash storage system to support its main business. In order to reduce the storage pressure caused by duplicate data, if the data type is not suitable for online…

Question

Options

• AFingerprint information

• A
  100% (38)

Explanation

Option A is correct because fingerprint information (a hash value computed from data content) is the standard mechanism used in deduplication workflows to identify duplicate blocks without directly comparing raw data. When data is not suitable for immediate online deduplication - for example, due to I/O performance constraints - Huawei's system calculates the fingerprint of that data and stores it in an opportunity table (also called a chance table), which queues it for offline/background deduplication processing later.

Only one choice is presented here, so there are no distractors to evaluate - this appears to be a fill-in-the-blank style question with a single correct answer.

Memory tip: Think of a fingerprint as a compact "identity card" for a data block - just as a human fingerprint uniquely identifies a person without revealing their full appearance, a data fingerprint (hash) uniquely identifies a block without storing the full block. The opportunity table is simply the waiting room where these fingerprints sit until the system has a chance to compare and deduplicate them.

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