This is a method where data is reordered according to a pattern specified by a key where, without access to this key, one does not know how to rearrange and view the content.?

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Quizplus · Accepted Answer

Only encryption reorders data according to a pattern specified by a key where the content cannot be rearranged or viewed without access to this key. Compression reduces the size of data, extension adds information to data, and defragmentation reorganizes the structure of data on a hard drive.

This Is a Method Where Data Is Reordered According to a Pattern