The following scenario will be used to answer questions 30, 31 and 32. Jeff is leading the business continuity group in his com

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问题 The following scenario will be used to answer questions 30, 31 and 32.
Jeff is leading the business continuity group in his company. They have completed a business impact analysis and have determined that if the company’s credit card processing functionality was unavailable for 48 hours the company would most likely experience such a large financial hit that it would have to go out of business. The team has calculated that this functionality needs to be up and running within 28 hours after experiencing a disaster for the company to stay in business. The team has also determined that the restoration steps must be able to restore data that are one hour old or less.
In this scenario, which of the following is the Work Recovery Time value?

选项 A、48 hours
B、28 hours
C、20 hours
D、1 hour

答案C

解析 C正确。工作恢复时间(Work Recovery Time，WRT)是MTD与RTO之差。RTO通常用于得到基础设施和系统备份并使它们运行，而WRT通常用于恢复数据、测试流程，然后为了生产目的使一切“可用”。
A不正确。因为在这个场景中，48小时是MTD值。
B不正确。因为在这个场景中，28小时是RTO值。
D不正确。因为这个值并不表示工作恢复时间。

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