Business Intelligence, 4e(sharda/Delen/Turban) Chapter 7 Big data Concepts and tools 1)In the opening vignette, the Access Telecom(AT), built a system to better visualize customers who were unhappy before they canceled their service Answer: TRUE Diff: 2 Page Ref: 372 2)The term"Big Data"is relative as it depends on the size of the using organization Answer TRUE Diff: 2 Page Ref: 373 3)Satellite data can be used to evaluate the activity at retail locations as a source of alternative dat Answer: TRUE Diff: 2 Page Ref: 377 4)Big Data is being driven by the exponential growth, availability, and use of information Answer: TRUE Diff: 2 Page Ref: 373 5)The quality and objectivity of information disseminated by influential users of Twitter is higher than that disseminated by noninfluential users RUE Diff: 2 Page Ref: 392 6) Big Data uses commod ity hardware, which is expensive, specialized hardware that is custom built for a client or application Answer: FALsE Diff: 2 Page Ref: 375 7) MapReduce can be easily understood by skilled programmers due to its procedural nature Answer: TRUE Diff: 2 Page Ref: 385 8)Hadoop was designed to handle petabytes and exabytes of data distributed over multiple nodes In p Answer: TRUE Diff: 2 age Ref: 385 9)Hadoop and MapReduce require each other to work Answer: FALSE Diff: 2 Page Ref: 386 10)In most cases, Hadoop is used to replace data warehouses Answer FALSE Diff: 2 Page Ref: 389 Copyright C 2018 Pearson Education, Inc1 Copyright © 2018 Pearson Education, Inc. Business Intelligence, 4e (Sharda/Delen/Turban) Chapter 7 Big Data Concepts and Tools 1) In the opening vignette, the Access Telecom (AT), built a system to better visualize customers who were unhappy before they canceled their service. Answer: TRUE Diff: 2 Page Ref: 372 2) The term "Big Data" is relative as it depends on the size of the using organization. Answer: TRUE Diff: 2 Page Ref: 373 3) Satellite data can be used to evaluate the activity at retail locations as a source of alternative data. Answer: TRUE Diff: 2 Page Ref: 377 4) Big Data is being driven by the exponential growth, availability, and use of information. Answer: TRUE Diff: 2 Page Ref: 373 5) The quality and objectivity of information disseminated by influential users of Twitter is higher than that disseminated by noninfluential users. Answer: TRUE Diff: 2 Page Ref: 392 6) Big Data uses commodity hardware, which is expensive, specialized hardware that is custom built for a client or application. Answer: FALSE Diff: 2 Page Ref: 375 7) MapReduce can be easily understood by skilled programmers due to its procedural nature. Answer: TRUE Diff: 2 Page Ref: 385 8) Hadoop was designed to handle petabytes and exabytes of data distributed over multiple nodes in parallel. Answer: TRUE Diff: 2 Page Ref: 385 9) Hadoop and MapReduce require each other to work. Answer: FALSE Diff: 2 Page Ref: 386 10) In most cases, Hadoop is used to replace data warehouses. Answer: FALSE Diff: 2 Page Ref: 389