ISM4402 CH7 MC

In the financial services industry, Big Data can be used to improve

Regulatory oversight and decision making

In a Hadoop "stack," what is a slave node?

a node where data is stored and processed

Using data to understand customers/clients and business operations to sustain and foster growth and profitability is

an increasingly challenging task for today's enterprises

In the Analyzing Disease Patterns from an Electronic Medical Records Data Warehouse case study, what was the analytic goal?

determine differences in rates of disease in urban and rural populations

In a network analysis, what connects nodes?

edges

Which Big Data approach promotes efficiency, lower cost, and better performance by processing jobs in a shared, centrally managed pool of IT resources?

grid computing

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?

in-memory analytics

In the Alternative Data for Market Analysis or Forecasts case study, satellite data was NOT used for

monitoring individual customer patterns

In the Twitter case study, how did influential users support their tweets?

objective data

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

secondary node

Companies with the largest revenues from Big Data tend to be

the largest computer and IT services firms

Traditional data warehouses have not been able to keep up with

the variety and complexity of data

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

unrestricted, ungoverned sandbox explorations

What is the Hadoop Distributed File System (HDFS) designed to handle?

unstructured and semistructured non-relational data

Data flows can be highly inconsistent, with periodic peaks, making data loads hard to manage. What is this feature of Big Data called?

variability

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

1015 bytes

Which of the following sources is likely to produce Big Data the fastest?

RFID tags

What is Big Data's relationship to the cloud?

Amazon and Google have working Hadoop cloud offerings

How does Hadoop work?

It breaks up Big Data into multiple parts so each part can be processed and analyzed at the same time on multiple computers

All of the following statements about MapReduce are true EXCEPT

MapReduce runs without fault tolerance