(110) A large chain of shops
with electronic funds transfer (EFT) at point-of-sale devices has a central
communications processor for connecting to the banking network. Which of the
following is the BEST disaster recovery plan for the communications processor?
A. Offsite storage of daily backups
B. Alternative standby processor onsite
C. installation of duplex communication
links
D. Alternative
standby processor at another network node
Explanation:
Having an alternative standby processor at another network node would be the best solution. The unavailability of the central communications processor would disrupt all access to the banking network, resulting in the disruption of operations for allof the shops. This could be caused by failure of equipment, power or communications. Offsite storage of backups would not help, since EFT tends to be an online process and offsite storage will not replace the dysfunctional processor. The provision ofan alternate processor onsite would be fine if it were an equipment problem, but would not help in the case of a power outage, installation of duplex communication links would be most appropriate if it were only the communication link that failed.
Having an alternative standby processor at another network node would be the best solution. The unavailability of the central communications processor would disrupt all access to the banking network, resulting in the disruption of operations for allof the shops. This could be caused by failure of equipment, power or communications. Offsite storage of backups would not help, since EFT tends to be an online process and offsite storage will not replace the dysfunctional processor. The provision ofan alternate processor onsite would be fine if it were an equipment problem, but would not help in the case of a power outage, installation of duplex communication links would be most appropriate if it were only the communication link that failed.
- Muhammad Idham Azhari
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