WGU C175/D426 DATA MANAGEMENT
FOUNDATIONS OA EXAM NEWEST ACTUAL EXAM 2
LATEST VERSIONS 300 QUESTIONS AND CORRECT
DETAILED ANSWERS WITH RATIONALES |ALREADY
GRADED A+ 2025/2025
In what two ways does a DBMS environment increase effectiveness in working
with data? - Answer-- Enables Data Sharing
- Storage of vast volumes of data
A company posts an internet-based newsletter about their products. What
advantage will this company gain from the relational database management
system that will store customer information? - Answer-Improved query response
time
What is the method of organizing attributes into tables? - Answer-Data
NORMALIZATION
What should a company expect from implementing a business intelligence
system? - Answer-- Financial: Increased profitability
- Productivity: Increased throughput, decreased workloads
- Trust: greater satisfaction
- Risk: improved visibility
, What is a relational model? - Answer-A database model based on mathematical
principles
What are the 3 mathematical concepts of the relational model? - Answer--
Domain
- Tuple
- Relation
How are maxima and minima depicted in an ER diagram? - Answer-Maxima is the
first letter/number shown (outside of the entity) and Minima is the letter next to it
in parentheses
Define: Singular Attribute - Answer-Each entity instance has at most ONE attribute
instance
Define: Plural Attribute - Answer-Each entity instance can have MANY attribute
instances
Define: Unique Attribute - Answer-Each attribute instance describes only ONE
entity instance
How do entity and attribute maxima appear in an ER diagram? - Answer-As M or 1
following the attribute name
FOUNDATIONS OA EXAM NEWEST ACTUAL EXAM 2
LATEST VERSIONS 300 QUESTIONS AND CORRECT
DETAILED ANSWERS WITH RATIONALES |ALREADY
GRADED A+ 2025/2025
In what two ways does a DBMS environment increase effectiveness in working
with data? - Answer-- Enables Data Sharing
- Storage of vast volumes of data
A company posts an internet-based newsletter about their products. What
advantage will this company gain from the relational database management
system that will store customer information? - Answer-Improved query response
time
What is the method of organizing attributes into tables? - Answer-Data
NORMALIZATION
What should a company expect from implementing a business intelligence
system? - Answer-- Financial: Increased profitability
- Productivity: Increased throughput, decreased workloads
- Trust: greater satisfaction
- Risk: improved visibility
, What is a relational model? - Answer-A database model based on mathematical
principles
What are the 3 mathematical concepts of the relational model? - Answer--
Domain
- Tuple
- Relation
How are maxima and minima depicted in an ER diagram? - Answer-Maxima is the
first letter/number shown (outside of the entity) and Minima is the letter next to it
in parentheses
Define: Singular Attribute - Answer-Each entity instance has at most ONE attribute
instance
Define: Plural Attribute - Answer-Each entity instance can have MANY attribute
instances
Define: Unique Attribute - Answer-Each attribute instance describes only ONE
entity instance
How do entity and attribute maxima appear in an ER diagram? - Answer-As M or 1
following the attribute name
