オンライン販売注文システムの事業継続計画 (BCP) を確認する際、リスク管理担当者は、復旧時間目標 (RTO) が災害復旧計画 (DRP) で定義されている時間よりも短いことに気付きました。リスク管理担当者がこの懸念に対処する最善の方法は次のどれですか。
正解:D
A recovery time objective (RTO) is the maximum acceptable time that a business process or function can be disrupted or unavailable before it causes significant damage or loss to the organization. A business continuity plan (BCP) is a document that describes how the organization will resume its critical business operations in the event of a disaster or disruption. A disaster recovery plan (DRP) is a document that describes how the organization will restore its IT systems and infrastructure in the event of a disaster or disruption. The RTO defined in the BCP and the DRP should be consistent and aligned, as they both support the continuity and recovery of the business. If the RTO defined in the BCP is shorter than the RTO defined in the DRP, it means that the BCP expects the business process or function to be restored faster than the DRP can provide. This can create a gap or a conflict between the BCP and the DRP, and can compromise the effectiveness and efficiency of the continuity and recovery efforts. Therefore, the best way for the risk practitioner to address this concern is to communicate the discrepancy to the DR manager for follow-up, meaning that the risk practitioner should report the issue and its implications to the DR manager, who is responsible for developing and maintaining the DRP. The DR manager should review the discrepancy and determine whether it is justified or not, and whether it requires any adjustment or alignment of the RTOs in the BCP and the DRP. References = Risk and Information Systems Control Study Manual, Chapter 4, Section 4.4.2, p. 206-207