Exam 7: Big Data Concepts and Tools

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The ________ Node in a Hadoop cluster provides client information on where in the cluster particular data is stored and if any nodes fail.

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If you have many flexible programming languages running in parallel,Hadoop is preferable to a data warehouse.

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Under which of the following requirements would it be more appropriate to use Hadoop over a data warehouse?

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A newly popular unit of data in the Big Data era is the petabyte (PB),which is

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All of the following statements about MapReduce are true EXCEPT

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The ________ of Big Data is its potential to contain more useful patterns and interesting anomalies than "small" data.

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In-motion ________ is often overlooked today in the world of BI and Big Data.

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A job ________ is a node in a Hadoop cluster that initiates and coordinates MapReduce jobs,or the processing of the data.

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It is important for Big Data and self-service business intelligence to go hand in hand to get maximum value from analytics.

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________ speeds time to insights and enables better data governance by performing data integration and analytic functions inside the database.

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In the Salesforce case study,streaming data is used to identify services that customers use most.

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What are the differences between stream analytics and perpetual analytics? When would you use one or the other?

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In a Hadoop "stack," what node periodically replicates and stores data from the Name Node should it fail?

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Companies with the largest revenues from Big Data tend to be

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Traditional data warehouses have not been able to keep up with

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In the opening vignette,the Access Telecom (AT),built a system to better visualize customers who were unhappy before they canceled their service.

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Allowing Big Data to be processed in memory and distributed across a dedicated set of nodes can solve complex problems in near-real time with highly accurate insights.What is this process called?

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List and describe the three main "V"s that characterize Big Data.

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When considering Big Data projects and architecture,list and describe five challenges designers should be mindful of in order to make the journey to analytics competency less stressful.

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What is NoSQL as used for Big Data? Describe its major downsides.

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