What is the minimum number of passes in a DOD-Level Data Wipe?
- Three
- Five
- Six
- Two
EXPLANATION
How Does a DOD-Level Data Wipe Work?
Three Pass Overwrite
A three pass overwrite means that the data is overwritten with a set of characters three times. There is a verification pass as well to check that all the data on the drive has been overwritten.
There is a standard process for the three pass overwrite: a single pass with a “0” character, followed by a single pass with a “1” character, and a final pass with a random character.
Seven Pass Overwrite
Like the three pass overwrite, the seven pass pattern overwrites the data many times with a specific pattern of characters.
The standard seven pass process is: a “0” character pass, a “1” character pass, random character pass, a second random character pass, a “0” character pass, a “1” character pass, and a random character pass before the final verification pass.
A three pass overwrite means that the data is overwritten with a set of characters three times. There is a verification pass as well to check that all the data on the drive has been overwritten.
There is a standard process for the three pass overwrite: a single pass with a “0” character, followed by a single pass with a “1” character, and a final pass with a random character.
Seven Pass Overwrite
Like the three pass overwrite, the seven pass pattern overwrites the data many times with a specific pattern of characters.
The standard seven pass process is: a “0” character pass, a “1” character pass, random character pass, a second random character pass, a “0” character pass, a “1” character pass, and a random character pass before the final verification pass.
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