Critical to the success of the data warehouse is the ability to explain the data.The DMBoK knowledge area that practices these techniques is:数据仓库成功的关键是解释数据的能力。实践这些技术的DMBOK知识领域是::()?
（A）Data Storage and Operations数据存储和操作
（B）Data Architecture数据架构
（C）Reference and Master Data参考和主数据
（D）Metadata Management元数据管理
（E）Document Content Management文档内容管理 答案解析:
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- 1The first morning an attribute is approaching an established data quality threshold, the following should take place:某天的早晨一个属性接近了已建立数据质量规则的阈值，下面哪项工作需要准备::()?
- 2The best way to validate that a database backup is working, is to:验证数据库备份是否正常工作的最佳方法是::()?
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- 4下面哪一个不是数据库存储组织的形式?
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