Which of the following represents the different information levels?
|A)||Individual, department, enterprise|
|B)||Detail, summary, aggregate|
|C)||Document, presentation, spreadsheet, database|
|D)||None of these are correct.|
What in the relational database model is a person, place, thing, transaction, or event about which information is stored?
All of the following are advantages of database-stored information, except:
|A)||Reduced information redundancy|
|B)||Increased scalability and performance|
|C)||Reduced information integrity|
What is the duplication of data, or the storage of the same data in multiple places?
What are the rules that help ensure the quality of information?
|A)||Relational integrity constraints|
|D)||Business-critical integrity constraints|
Which of the following describes ETL?
|A)||A process that transforms information using a common set of enterprise definitions|
|B)||A process that loads information into a data warehouse|
|C)||A process that extracts information from internal and external databases|
|D)||All of these are correct.|
What is data mining?
|A)||A particular attribute of information|
|B)||The common term for the representation of multidimensional information|
|C)||The process of analyzing data to extract information not offered by the raw data alone|
|D)||Uses a variety of techniques to find patterns and relationships in large volumes of information and infer rules from them that predict future behavior and guide decision making|