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INTRODUCTION
Organizations today are overwhelmed with data. Besides user-created data such as spreadsheets, documents, videos, audio recordings, presentation files, computer-aided design files, schematics, and health and regulatory data, the system creates its own data as part of its ongoing management. Servers and other networking equipment keep logs, data is created in aggregate for statics and reporting, and databases support the applications used by employees every day. Some of this data must be kept confidential, but some of it needs to be available at all times to keep the business running. You, or someone like you, will likely be asked ...

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