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Sophos Vs. Regular Method
As can be seen in this illustration, it takes a lot more time to match a file against all known virus signatures than it does to recompute a checksum and compare it. The full scan has to be performed once in the beginning in order to determine if the file is free of viruses.
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Copyright © 1981-2010 by Computer Language Company Inc. All rights reserved.
All other reproduction is strictly prohibited without permission from the publisher.
Copyright © 1981-2010 by Computer Language Company Inc. All rights reserved.
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