2024软考-数据库技术基础-数据库工程师/网络工程师/软件设计师/信息系统管理视频教程
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为帮助考生估分,课课家小编为大家整理了2022年数据库系统工程师上午真题(71-75),希望对大家估分有帮助。
为方便广大考生考后估分对答案,课课家软考学院老师特向广大学员和网友搜集整理了2022年数据库系统工程师上午真题(71-75),供大家参考。课课家软考学院老师也将在考后进行真题答案解析,想知道答案和解析的考生请进入课课家在线题库,敬请广大考生关注。
71-75、Corporate decision makers require access to information from multiplesuch sources.Seting up queries on individual sources is both cumbersome and (71).Moreover,the sources of data may store only current data,whereas decision makers may need access to (72) dataas well.A data warehouse is a repository (or archive)of information gathered from multiple sources,stored under a unified schema,at a (73)site.Oncegathered,the data are stored for a long time,permitting access to historical data.Thus,data warehouses provide the user with a single consolidated(74)to data,making decision-support queries easier to write.Moreover,by accessing information fordecision support from a data warehouse,the decision maker ensures that online transaction-processing systems are not(75)by the decision-supportworkdoad.
(71)
A.inefficient
B.efficient
C.easy
(72)
A.many
B.past
C.big
(73)
A.distributed
B.single
C.many
(74)
A.table
B.row
C.system
(75)
A.used
B.affected
C.supported
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