某公司欲开发一个人员管理系统，在架构设计阶段，公司的架构师识别出3个核心质量属性场景。其中“管理系统遭遇断电后，能够在15秒内自动切换至备用系统并恢复正常运行”主要与（ ）质量属性相关，通常可采用（ ）架构策略实现该属性；“系统正常运行时，人员信息查询请求应该在2秒内返回结果”主要与（请作答此空）质量属性相关，通常可采用（ ）架构策略实现该属性；“系统需要对用户的操作情况进行记录，并对所有针对系统的恶意操作行为进行报警和记录”主要与（ ）质量属性相关，通常可采用（ ）架构策略实现该属性。
- A.可测试性
- B.易用性
- C.可用性
- D.性能
正确答案及解析
正确答案
解析
此题为近几年经典题型，主要考查质量属性相关概念，属于送分题。
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