Exam 12: Big Data datawarehouse and Business Intelligence Systems

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DBMSs associated with the NoSQL movement are often known as ________.

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E

In RFM analysis,R stands for "how recently."

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True

OLAP provides the ability to sum,count,average and perform other simple arithmetic operations on groups of data.

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True

What is a conformed dimension?

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Data warehouse data are frequently denormalized.

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The term drill down means the user wants to ________.

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In OLAP,the data item of interest is called a ________.

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To arrange the PivotTable columns and rows in Microsoft Excel 2013,we use the:

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We have obtained access to the company's operational data.We have been asked to produce a report with an item by item analysis of sales,but the only sales figure available is the total sale value for each order.This is an example of ________.

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What are objects,and how are they related to the object-oriented DBMS (OODBMS)?

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What is a star schema?

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An OLAP cube is limited to three axes.

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What is a distributed database?

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Which of the following is (are)true about data mining applications?

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A data mart differs from a data warehouse in that:

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The movement that uses different database methods than the relational model and/or SQL is called the NoSQL movement.

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Dimensional databases use the star schema.

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When distributed databases create copies of the database on different servers,this is known as:

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Data warehouses use a(n)________.

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Snowflake schemas have normalized ________.

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