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Question 8

Refer to the exhibit.

How is a hash created on file Apr.Txt in an object-level deduplication?

from content with variable-length

from the metadata of the file

from the content of the file

from content with fixed-length

Correct Answer: C

In object-level deduplication, a hash is created from the content of the file. This unique hash, also known as an object ID, is used to identify and eliminate duplicate copies of the same data. The deduplication process relies on the hash values to determine whether identical content is already stored and thus can avoid storing redundant copies.

Discussion

murfcraigOption: C

Object is created, and the object ID (hash value) is created from the content of the file

CSheikOption: C

C: CAS uses a hashing algorithm to recalculate the object’s content address as a validation step and compares the result to its original content address