A project manager is working on implementing a new software application critical to a company 's operations . During risk analysis , a team member identifies a high-probability risk of electrical failure dure to energy supply issues at the project's location . This could affect the servers and make the application unavailable . The project sponsors agree to establish a redundant secondary site .What risk response strategy is being used ?项目经理正在实施一项对公司经营至关重要的新软件应用程序。在风险分析期间，由于项目所在地能源供应问题，一名团队成员识别到一个高发生概率的电气故障风险，这可能影响服务器，让应用程序不可用，项目发起人同意建立一个备用辅助站点。这使用的是什么风险应对策略？