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Omis Question and answers rated A+ Omis, OMIS 351 Quiz 6 90% - correct answer 1.645 95% - correct answer 1.960 99% - correct answer 2.576 OMIS 351 Quiz 6 A data cube refers to a: - correct answer special database used to store data in OLAP re

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  • November 6, 2024
  • 5
  • 2024/2025
  • Exam (elaborations)
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Omis, OMIS 351 Quiz 6
90% - correct answer ✔1.645


95% - correct answer ✔1.960


99% - correct answer ✔2.576



OMIS 351 Quiz 6
A data cube refers to a: - correct answer ✔special database used to store
data in OLAP reporting.


A(n) ______ is a tool for extracting, combining, and displaying data from one
or more tables,
according to any criteria specified. - correct answer ✔query


_____ is by far the most popular language for creating and manipulating
databases. - correct answer ✔SQL


Customer lifetime value represents: - correct answer ✔the present value of
the likely future income stream generated by an individual purchaser.


A table in Access must have a primary key to:
A. uniquely identify records and form relationships with other tables.
B. keep the data "unlocked".
C. match its foreign key.

, D. establish primary business-technology solutions.
E. None of the above - correct answer ✔None of the above


The electronic medical record (EMR) systems discussed in class present a
major opportunity to use business intelligence tools to support operational
activities (in this case, providing cheaper, safer healthcare). Which of the
following is/are examples of how a BI tool is used to support the operations of
a health care organization? - correct answer ✔-Storing data about a
treatment given to a patient is an example of a transaction processing system
-Using the data collected about health clinic visits to provide an early warning
of a flu outbreak is an example of data mining
-Combining patient data with diagnostic criteria to make an accurate diagnosis
is an example of a decision support system


Databases organized in such a way that multiple tables are interconnected
based on common keys, are referred to as _____ databases. - correct
answer ✔relational


Why is redundant information a problem? - correct answer ✔-It is difficult to
determine which values are the most current and accurate
-It is often inconsistent
-It takes up storage space
-It makes it difficult to update data


What type of integrity constraint does not allow someone to create an order
for a nonexistent customer? - correct answer ✔Relational/referential integrity
constraint


In database systems, a row is also known as a _____. - correct answer
✔record

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