Chapter 6 Practice Test Questions

Unstructured data comes from sources such as word-processing documents and surveillance video.

• True

• False

The data for BI (business intelligence) comes from many sources.

• True

• False

Users still need help from the IT function of the organization to create customer reports using modern reporting tools.

• True

• False

Marshall's company currently maintains their data on in-house servers, but his supervisor has asked him to research their options for having some or all of it hosted by a cloud service provider. Which challenge of big data is Marshall helping to address?

• where and how to store the data

• how to derive value from the relevant data

• how to choose what subset of data to store

• how to find the most relevant data nuggets

The use of in-memory databases for processing big data has become feasible in recent years, thanks to _____.

• the increase in RAM costs

• the increase in RAM capacities

• the advent of 2-bit processors

• the decrease in single-core CPU costs

The key challenges associated with big data include the difficulty of locating and deriving value from _____.

• regulations designed to prevent fraud

• security service providers

• relevant data to make decisions

• structured data to protect privacy

If not well managed, self-service BI and analytics may lead to poor decisions based on _____.

• end users' intuitions

• "data islands"

• inconsistent conclusions

• erroneous analysis and reporting

_____ is used to explore large amounts of data for hidden patterns to predict future trends.

• Data governance

• Data mining

• Regression analysis

• A genetic algorithm

Which of the following is NOT considered a component of business intelligence?

• data extraction practices

• visualization of data

• data analysis applications

• data transaction processing

Graph NoSQL databases _____.

• are well-suited for analyzing interconnections

• have only two columns

• store, retrieve, and manage document-related information

• focus on only keys and values