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BCIS 4610 FINAL EXAM Question and answers already passed 2024

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BCIS 4610 FINAL EXAM Question and answers already passed 2024 BCIS 4610 FINAL EXAM, UNT. Conceptual Data Modeling - correct answer a detailed model that captures the overall structure of data in an organization Two perspectives on data modeling: - correct answer -Top-down approach for a...

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  • September 4, 2024
  • 14
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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BCIS 4610 FINAL EXAM, UNT.
Conceptual Data Modeling - correct answer ✔a detailed model that captures
the overall structure of data in an organization


Two perspectives on data modeling: - correct answer ✔-Top-down approach
for a data model is derived from an intimate understanding of the business.
-Bottom-up approach for a data model is derived by reviewing specifications


Entity-Relationship data model - correct answer ✔A detailed, logical
representation of the entities, associations, and data elements for an
organization or business area.


Entity - correct answer ✔person, place, object, event or concept in the user
environment about which data is to be maintained


Entity type - correct answer ✔collection of entities that share common
properties or characteristics


Entity instance - correct answer ✔single occurrence of an entity type


Attribute - correct answer ✔named property or characteristic of an entity that
is of interest to the organization


Multivalued attribute - correct answer ✔an attribute that may take on more
than one value for each entity instance


Relationship - correct answer ✔an association between the instances of one
or more entity types that is of interest to the organization

, Degree - correct answer ✔the number of entity types that participate in a
relationship


Four key steps in logical database modeling and design: - correct answer ✔-
Develop
-Combine
-Translate
-Compare


Cloud computing - correct answer ✔applications over the Internet where
customers do not have to invest in the hardware and software resources
needed to run and maintain the applications


Calculated fields - correct answer ✔a field that can be derived from other
database fields, a computed field or derived field.


Data type - correct answer ✔a coding scheme recognized by system
software for representing organizational data.


Default value - correct answer ✔a value a field will assume unless an explicit
value is entered for that field.


Denormalization - correct answer ✔the process of splitting or combining
normalized relations into physical or combining normalized relations into
physical tables based on affinity of use of rows and fields.


Field - correct answer ✔the smallest unit of named application data
recognized by system software.

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