One of the key differences between operational systems and data warehouses is:操作系统与数据仓库关键不同之处在于::()?
(A)Operational systems focus on data quality; data warehouses focus on data security操作系统聚焦在数据质量,数据仓库聚焦在数据安全
(B)Operational systems focus on current data; data warehouses contain historical data操作系统聚焦在当前的数据,数据仓库包含历史数据
(C)Operational systems focus on historical data; data warehouses contain current data操作系统聚焦在历史数据,数据仓库包含当前的数据
(D)Operational systems are available 24x7; data warehouses are available during business hours操作系统是7x24在线的,数据仓库只在工作时间运行
(E)Operational systems focus on business processes; data warehouses focus on business strategies操作系统聚焦在业务流程,数据仓库包含当前数据 答案解析: 该题的是OLTP和OLAP的区别应用系统(OLTP)聚焦是当前的数据,因为MYSQL也好,ORACLE也好,其实是不能放海量的数据的,OLTP完成的是事务型的工作,如订单事务分析系弘(OLAP),其实就是数仓,聚焦在所有历史数据的挖掘,分析,给出相关的报表,给出决策推断和建议


更多CDMP数据治理试题
- 1Data Stewards are most likely to be responsible for:数据管理员最有可能负责::()?
- 2Adoption of a Data Governance program is most likely to succeed:采用数据治理计划最有可能取得成功::()?
- 3Data Governance touch points throughout the project lifecycle are facilitated by this organisation数据治理触点贯穿整个项目生命周期,其是由企业内什么组织推动的:()?
- 4An effective Data Governance communication program should include the following:有效的数据治理沟通计划应包括以下内容::()?
- 5Growth by organizational change management is provided by all of the following EXCEPT good通过组织变革管理实现的增长由以下所有内容提供,但良好的内容除外:()?
- 6Which of the following BEST characterizes a planning-level data architecture?以下哪一项是规划级数据架构的最佳特征?:()?