Exam 8: Big Data, data Warehouses, and Business Intelligence Systems

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Apache Cassandra is an example of a column family database.

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The term for the enormous datasets generated by Web 2.0 applications is ________.

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Business Intelligence (BI)systems are information systems that help users analyze and use data.

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To deal with historical data values,dimensional databases use a(n)________.

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Problematic data are called ________.

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Business Intelligence (BI)systems do which of the following?

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A data mart differs from a data warehouse in that:

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Business Intelligence (BI)systems obtain data in ________ different ways.

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Snowflake schemas have normalized:

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The term drill down refers to the capability of seeing the data in smaller and smaller units.

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What is a star schema?

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What is a conformed dimension?

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Business Intelligence (BI)________ are used to filter data,sort data,group data and make simple calculations based on the data.

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Which of the following is a reason that operational data are difficult to read?

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Data warehouses are populated with data prepared by ________ programs.

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Column family databases are indistinguishable from relational database tables.

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Business Intelligence (BI)reporting systems can do which of the following operations?

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

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A dimensional database uses a(n)________.

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To create an OLAP report for an Access 2013 database,we can build a PivotTable in:

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