凌晨2点17分，某电商平台的后台监控突然发出刺耳警报——核心交易系统接口响应时间从平均200ms飙升至8秒，数据库CPU使用率突破95%，排队订单数在10分钟内累积超过5万笔。运维团队紧急排查后发现，问题源头竟是一次“看似无害”的需求变更：“在订单详 ...

Operating massive reverse proxy fleets reveals hard lessons: optimizations that work on smaller systems fail at scale; mundane oversights like missing commas cause major outages; and abstractions ...

These questions come from my Udemy training and the certificationexams.pro website, resources that have helped many students pass the DP-100 certification. These are not DP-100 exam dumps or ...