Which of the following statements about Big Data is true? - Answer- Pure Big Data systems do not involve fault tolerance
In which stage of extraction,
... [Show More] transformation, and load (ETL) into a data warehouse are data aggregated? - Answer- Transformation
All of the following statements about data mining are true EXCEPT: - Answer- the process aspect means that data mining should be a one-step process to results
For the majority of organizations, a daily accounts receivable transaction is a(n) - Answer- Structured decision
The ________ handle a company s routine ongoing business and give management the ability to scour data from the data warehouse for information about the business and use the analysis to provide tactical or operational decision support. - Answer- online transaction processing systems
Which kind of data warehouse is created separately from the enterprise data warehouse by a department and not reliant on it for updates? - Answer- Independent Data Mart
Operational or transaction databases are product oriented, handling transactions that update the database. In contrast, data warehouses are - Answer- subject-oriented and nonvolatile.
The data field "salary" can be best described as - Answer- ratio data.
What application is MOST dependent on text analysis of transcribed sales call center notes and voice conversations with customers? - Answer- CRM
When querying a dimensional database, a user went from summarized data to its underlying details. The function that served this purpose is - Answer- Drill down
In data mining, finding an affinity of two products to be commonly together in a shopping cart is known as - Answer- association rule mining
Active data warehousing can be used to support the highest level of decision making sophistication and power. The major feature that enables this in relation to handling the data is - Answer- Speed of data transfer
Which broad area of data mining applications analyzes data, forming rules to distinguish between defined classes? - Answer- classification
Which of the following online analytical processing (OLAP) technologies does NOT require the precomputation and storage of information? - Answer- ROLAP
The data field "ethnic group" can be best described as - Answer- nominal data
Sentiment classification usually covers all the following issues EXCEPT: - Answer- biometric identification of the consumer expressing the sentiment
What data discovery process, whereby objects are categorized into predetermined groups, is used in text mining? - Answer- classification
Data warehouses provide direct and indirect benefits to using organizations. Which of the following is an indirect benefit of data warehouses? - Answer- Improved customer service
In sentiment analysis, which of the following is an implicit opinion? - Answer- The customer service I got for my TV was laughable
A Web client that connects to a Web server, which is in turn connected to a BI application server, is reflective of a - Answer- Three tier architectures
Which broad area of data mining applications partitions a collection of objects into natural groupings with similar features? - Answer- clustering
Using data mining software, the act of finding events linked over time (ex: if a house is bought today, 75 % of the time a refrigerator will be purchased within two weeks) is known as: - Answer- sequences
The deployment of large data warehouses with terabytes or [Show Less]