The term "data rot" refers to A. Data that no longer serve a purpose. B. The deterioration of the medium on which the data are stored. C. Data that are irrelevant or contain errors. D. All of these.
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Data redundancy refers to: A. Storing data in a single central location. B. Sharing data with others. C. Having copies of the same data in multiple locations. D. All of these.
The management of data across the entire organization is most accurately defined as: A. Data integration. B. Data control. C. Data governance. D. Data administration
The use of databases enables organizations to (choose all that apply):Entry field with correct answer A. Minimize data security risks. B. Minimize data isolation. C. Eliminate data redundancy. D. Eliminate data integrity. E. Minimize data inconsistency.
A data model is the diagrammatic representation of a database that clearly defines a database"s ___ , ____ and ____. A. Entities, attributes, relationships. B. Entity classes, hierarchy, files. C. Data hierarchy, data attributes, data files. D. Entity classes, entity attributes, entity files.
A standardized language used to manipulate data is _____. A. MS-Access B. Oracle C. Query-by-example language D. None of these
_____ is a method for analyzing and reducing a relational database to its most streamlined form. A. Structured query B. Normalization C. Query-by-example D. Relational analysis
Operational data that are constantly updated are stored in: A. Data warehouses. B. Data marts. C. Databases. D. All of these.
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____ is the cumulative store of subjective or experiential learning. A. Tacit knowledge B. Explicit knowledge C. Intellectual capital D. None of these
_____ is a process that helps organizations identify, select, organize, disseminate, transfer, and apply expertise that is part of the organization"s memory and typically resides inside the organization in an unstructured manner. A. Discovery B. Knowledge management C. Decision support D. Data mining
It is very difficult to manage data for which of the following reasons? A. Data are scattered throughout organizations. B. Data security is easy to maintain. C. Data are stored in the same format throughout organizations. D. The amount of data stays about the same over time. E. The decreasing amount of external data needs to be considered.
When customers access a Web site and make purchases, they generate _____. A. Web data B. information C. hyperlink data D. clickstream data E. tracking cookies
Which of the following are ways for companies to leverage big data to gain value? (check all that apply) A. Creating transparencies B. Segmenting a population to customize actions C. Analyzing less data D. Reducing spending on technical initiatives E. Providing automated algorithms to support decision making
A. Creating transparenciesB. Segmenting a population to customize actionsE. Providing automated algorithms to support decision making
In a relational database, the customer record contains information regarding the customer"s last name. The last name is a(n):A. entityB. objectC. relationD. attributeE. primary key
Place the following members of the data hierarchy in the correct order:A. bit - byte - field - record - file - databaseB. bit - record - field - byte - file - databaseC. byte - bit - record - field - databaseD. bit - byte - field - record - database - fileE. bit - field - byte - record - file - database