CISSP Exam Note (Domain 2: Telecommunications and Networking Security) – Back-up Methodologies

December 2, 2009 · Posted in Information Security, Information Systems · Comment 

In information technology, a backup or the process of backing up refer to making copies of data so that these additional copies may be used to restore the original after a data loss event. These additional copies are typically called “backups.” The verb is back up in two words, whereas the noun is backup (often used like an adjective in compound nouns).

Backups are useful primarily for two purposes. The first is to restore a state following a disaster (called disaster recovery). The second is to restore small numbers of files after they have been accidentally deleted or corrupted. Data loss is also very common. 66% of internet users have suffered from serious data loss. Read more

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