Explanation
The recovery point objective (RPO) defines the maximum loss of data (in terms of time) acceptable by the business (i.e., age of data to be restored). It will directly determine the basic elements of the backup strategy frequency of the backups and what kind of backup is the most appropriate (disk-to-disk, on tape, mirroring).
The volume of data will be used to determine the capacity of the backup solution. The recovery time objective (RTO) - the time between disaster and return to normal operation - will not have any impact on the backup strategy. The availability to restore backups in a time frame consistent with the interruption window will have to be checked and will influence the strategy (e.g., full backup vs. incremental), but this will not be the primary factor.

Residual risk is the remaining risk after all security controls have been implemented. It is important to measure the residual risk of an organization in order to determine the effectiveness of the security program and to justify continued investment in the program. A reduction in residual risk is an indication that the security program is effective and that continued investment is warranted.

Section: INFORMATION SECURITY GOVERNANCE
Explanation:
Protection of identifiable personal data is the major focus of recent privacy regulations such as the Health Insurance Portability and Accountability Act (HIPAA). Data mining is an accepted tool for ad hoc reporting; it could pose a threat to privacy only if it violates regulatory provisions. Identity theft is a potential consequence of privacy violations but not the main focus of many regulations. Human rights addresses privacy issues but is not the main focus of regulations.