铭毅天下笔记¶ prerequisite¶ exam link¶ https://training.elastic.co/exam/elastic-certified-engineer https://www.elastic.co/cn/training/certification/faq exam env¶ 2x docker centos exam content¶ 部署、索引、检索、聚合、分析、文档、集群、安全等核心模块