正解:A
The first step to ensure continuity of operations when performing a risk assessment of a new service to support a new business process is to identify the conditions that may cause disruptions to the service or the process. This is because identifying the potential sources, causes, and scenarios of disruptions helps to determine the impact and likelihood of the risks, and to select the appropriate risk responses and recovery strategies. The other options are not the first steps, although they may also be part of the risk assessment process. Reviewing incident response procedures, evaluating the probability of risk events, and defining metrics for restoring availability are examples of subsequent steps that depend on the identification of the conditions that may cause disruptions. References = CRISC: Certified in Risk & Information Systems Control Sample Questions