MIS ch. 6 quiz
Tacit knowledge is the more objective, rational, and technical types of knowledge.
False
The relational database model is based on the concept of three- dimensional tables.
False
The secondary key is a field that identifies a record with complete uniqueness.
False
When data are normalized, attributes in the table depend on the primary key and any secondary keys.
False
Entity-relationship diagrams are documents that show the primary and secondary keys associated with a conceptual data model.
False
Explicit knowledge refers to the cumulative store of subjective learning, which is personal and hard to formalize.
False
In a data warehouse, existing data are constantly purged as new data come in.
False
It is easy to manage all the data coming into an organization.
False
It is important for applications and data to be dependent on each other.
False
Master data are generated and captured by operational systems.
False
Social data is not a form of big data.
False
A data warehouse is a low-cost, scaled-down version of a data mart designed for the end-user needs in a department in a large organization.
False
A database must be associated with only one computer program or information system.
False
A group of related fields is generally called a data file.
False
A relational database typically consists of one large two-dimensional table.
False
An organization's data warehouse generally maintains its operational data.
False
Data rot refers to the quality of the data itself.
False
A negative value for a student's grade point average is an example of a data integrity problem.
True
An attribute is any characteristic or quality that describes a particular entity.
True
An entity is a person, place, thing, or event about which information is maintained.
True
Data marts are designed for the end- user needs in a strategic business unit or department.
True
In the United States, federal law requires companies to store, evaluate, and disclose financial data for fixed periods of time, even if the company no longer has any use for the data.
True
Increasing amounts of external data need to be considered in making organizational decisions.
True
Knowledge management systems (KMS) are used by organizations to capture, store, and disseminate knowledge within the organization.
True
NoSQL databases can process both structured and unstructured data.
True
Online analytical processing (OLAP) involves the analysis of accumulated data by end users.
True
Online analytical processing involves the analysis of accumulated data by end users.
True
Structured query language is a relational database language that enables users to perform complicated searches with relatively simple statements.
True
The best way to capture the data in an organized format is to use a database.
True
The data dictionary stores definitions of data elements, characteristics that use the data elements, physical representation of the data elements, data ownership, and security.
True
You would be an instance of your university's STUDENT class.
True
