Suggested Answer:B🗳️
Electronic vaulting refers to the transfer of backup data to an off-site location. This is primarily a batch process of dumping backup data through communications lines to a server at an alternate location. Electronic vaulting is accomplished by backing up system data over a network. The backup location is usually at a separate geographical location known as the vault site. Vaulting can be used as a mirror or a backup mechanism using the standard incremental or differential backup cycle. Changes to the host system are sent to the vault server in real-time when the backup method is implemented as a mirror. If vaulting updates are recorded in real-time, then it will be necessary to perform regular backups at the off-site location to provide recovery services due to inadvertent or malicious alterations to user or system data. The following are incorrect answers: Remote journaling refers to the parallel processing of transactions to an alternate site (as opposed to a batch dump process). Journaling is a technique used by database management systems to provide redundancy for their transactions. When a transaction is completed, the database management system duplicates the journal entry at a remote location. The journal provides sufficient detail for the transaction to be replayed on the remote system. This provides for database recovery in the event that the database becomes corrupted or unavailable. Database shadowing uses the live processing of remote journaling, but creates even more redundancy by duplicating the database sets to multiple servers. There are also additional redundancy options available within application and database software platforms. For example, database shadowing may be used where a database management system updates records in multiple locations. This technique updates an entire copy of the database at a remote location. Data clustering refers to the classification of data into groups (clusters). Clustering may also be used, although it should not be confused with redundancy. In clustering, two or more "partners" are joined into the cluster and may all provide service at the same time. For example, in an active–active pair, both systems may provide services at any time. In the case of a failure, the remaining partners may continue to provide service but at a decreased capacity. The following resource(s) were used for this question: Hernandez CISSP, Steven (2012-12-21). Official (ISC)2 Guide to the CISSP CBK, Third Edition ((ISC)2 Press) (Kindle Locations 20403-20407 and 20411-20414 and 20375-20377 and 20280-20283). Auerbach Publications. Kindle Edition.
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