The following is an incorrect description of the principle of data deduplication technology, which is the single choice?

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Farrah Colson · Accepted Answer

The stored data block is no longer stored, and no processing is required, for example, no additional index is required.

Farrah Colson · Answer

For the data that needs to be stored, perform a hash comparison with the data block as the unit.

Farrah Colson · Answer

The same data block is physically stored only once.

Farrah Colson · Answer

Through the index, you can see the complete logical view of the data.

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