There are several types of redundant technologies that can be put into place. What type of technology is shown in the graphic that follows?

A.
Tape vaulting

B.
Remote journaling

C.
Electronic vaulting

D.
Redundant site

Explanation:
A: Each site should have a full set of the most current and updated information and files, and a commonly used software backup technology is referred to as tape vaulting. Many
businesses back up their data to tapes that are then manually transferred to an offsite facility by a courier or an employee. With automatic tape vaulting, the data is sent over a serial
line to a backup tape system at the offsite facility. The company that maintains the offsite facility maintains the systems and changes out tapes when necessary. Data can be quickly
backed up and retrieved when necessary. This technology reduces the manual steps in the traditional tape backup procedures. Basic vaulting of tape data is sending backup tapes to
an offsite location, but a manual process can be error prone. Electronic tape vaulting transmits data over a network to tape devices located at an alternate data center. Electronic tape
vaulting improves recovery speed and reduces errors, and backups can be run more frequently.
B is incorrect because remote journaling is a technology used to transmit data to an offsite facility, but this usually only includes moving the journal or transaction logs to the offsite
facility, not the actual files. This graphic specifically shows a tape controller and remote journaling mainly takes place between databases. Remote journaling involves transmitting the
journal or transaction log offsite to a backup facility. These logs contain the deltas (changes) that have taken place to the individual files. If and when data are corrupted and need to be
restored, the company can retrieve these logs, which are used to rebuild the lost data. Journaling is efficient for database recovery, where only the reapplication of a series of changes
to individual records is required to resynchronize the database.
C is incorrect because electronic vaulting most commonly takes place between databases and makes copies of files as they are modified and periodically transmits them to an
offsite backup site. The transmission does not happen in real time but is carried out in batches. So, a company can choose to have all files that have been changed sent to the backup
facility every hour, day, week, or month. The information can be stored in an offsite facility and retrieved from that facility in a short period of time. This form of backup takes place in
many financial institutions, so when a bank teller accepts a deposit or withdrawal, the change to the customer’s account is made locally to that branch’s database and to the remote site
that maintains the backup copies of all customer records.
D is incorrect because while the graphic could be illustrating that the tape controller is located at a redundant site, a redundant site is not actually a technology. Some companies
choose to have redundant sites, meaning one site is equipped and configured exactly like the primary site, which serves as a redundant environment. These sites are owned by the
company and are mirrors of the original production environment. This is one of the most expensive backup facility options, because a full environment must be maintained even though
it usually is not used for regular production activities until after a disaster takes place that triggers the relocation of services to the redundant site.