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When defining your business continuity plan, which of the following should one consider doing?当你要进行业务连续计划的定义，下面哪一个是你第一个考虑去实现的?:()?

（A）Determine the risk, probability and impact, check document backup frequency定义风险、概念及影响，检查文档备份频率

（B）Make sure that the data is retained sufficiently long, check that critical data is encrypted, check access rights确保数据的保留期足够地长，检查数据是被加密的，检查访问的正确性

（C）Have the contracts in place to acquire new hardware in case of technical problems, define policies需要定义政策以便发生技术问题时，能及时得到新硬件合同

（D）Consider written policies and procedures, impact mitigating measures, required recovery time and acceptable amount of disruption, the criticality of the documents考虑书面制度和程序、减轻影响的措施、所需的恢复时间、可接受的中断量、以及文档的重要性

（E）Write a report and discuss with management the required budget编写报告和讨论管理的预算 答案解析: 该题考的是文件备份及恢复机制，书上称业务连续计划，见教材P471，我截图出来如下: