CISSP All Domains Practice test 15

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Question : 38 of 50

Marks: +1, -0

We want to ensure there is no data remanence when we dispose of our old hard disks. When we overwrite a hard disk, what does the overwrite program do?

Writes random letters over used sections of the disk.
Writes random numbers over all the sectors.
Writes 0's over all the sectors.
Writes 0's over all the sectors with active data on it.

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