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OMIS EXAM III questions and answers graded A+
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OMIS EXAM III questions and answers graded A+
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OMIS EXAM III________ creates confusion that hampers the creation of information systems that integrate data from
different sources. - correct answer ✔✔Data redundancy
________ tools are used to analyze large unstructured data sets, such as email, memos, and survey
responses to discover patterns and relationships. - correct answer ✔✔Text mining
A characteristic or quality that describes a particular database entity is called a(n): - correct answer
✔✔attribute.
A database ________ describes a database entity. - correct answer ✔✔record
A DBMS makes the: - correct answer ✔✔physical database available for different logical views.
A distributed database: - correct answer ✔✔...
A field identified in a record as holding the unique identifier for that record is called the: - correct answer
✔✔key field.
A field identified in a table as holding the unique identifier of the table's records is called the: - correct
answer ✔✔primary key
A household appliances manufacturer has hired you to help analyze its social media datasets to
determine which of its refrigerators are seen as the most reliable. Which of the following tools would
you use to analyze this data? - correct answer ✔✔Sentiment analysis software
A one-to-many relationship between two entities is symbolized in a diagram by a line that ends with: -
correct answer ✔✔a crow's foot topped by a short mark.
, A schematic of the entire database that describes the relationships in a database is called a(n): - correct
answer ✔✔entity-relationship diagram
A(n) ________ represent data as two-dimensional tables. - correct answer ✔✔relational DBMS
All of the following are issues with the traditional file environment except: - correct answer ✔✔inability
to develop specialized applications for functional areas.
All of the following are technologies used to analyze and manage big data except: - correct answer
✔✔cloud computing
An organization's rules for sharing, disseminating, acquiring, standardizing, classifying, and inventorying
information is called a(n): - correct answer ✔✔information policy
Data ________ occurs when the same data is duplicated in multiple files of a database. - correct answer
✔✔redundancy
Data mining allows users to: - correct answer ✔✔find hidden relationships in data
DBMSs typically include report generating tools in order to: - correct answer ✔✔display data in a more
structured and polished format than would be possible just by querying.
In a large organization, which of the following functions would be responsible for physical database
design and maintenance? - correct answer ✔✔Database administration
In a large organization, which of the following functions would be responsible for policies and
procedures for managing internal data resources? - correct answer ✔✔Data administration
In a relational database, a record is referred to in technical terms as a(n): - correct answer ✔✔tuple
In a relational database, the three basic operations used to develop useful sets of data are: - correct
answer ✔✔select, project, and join.
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