12/26/24, 5:37 PM WGU C175/D426 Data Management Exam Review 2025 Complete Questions And Verified Answers/ Complete Solutions Wit…
Get 20% off Quizlet Plus after free trial Claim discount
WGU C175/D426 Data Management Exam
Review 2025 Complete Questions And Verified
Answers/ Complete Solutions With Rationales
|Get It 100% Accurate!! Already graded A+
Practice questions for this set
Learn
Studied 7 terms
Nice work, you're crushing it
Continue studying in Learn
Terms in this set (348)
Refers to the MINIMUM number of times an instance
in one entity can be associated with instance of
Modality
another entity (minima). Appears as a 0 or 1 on the
relationship line, next to cardinality.
Requires that ALL foreign key values must either be
Referential Integrity
fully NULL or match some primary key value.
1. Primary key is updated 2. Foreign key is updated 3.
Ways Referential Integrity
Row containing primary key is DELETED 4. Row
can be violated
containing foreign key is INSERTED.
https://quizlet.com/988346073/wgu-c175d426-data-management-exam-review-2025-complete-questions-and-verified-answers-complete-solutions… 1/8
, 12/26/24, 5:37 PM WGU C175/D426 Data Management Exam Review 2025 Complete Questions And Verified Answers/ Complete Solutions Wit…
1. RESTRICT - rejects an insert, update, or delete 2.
Actions to Correct SET NULL - sets invalid foreign keys to null 3. SET
Referential Integrity DEFAULT - sets invalid foreign keys to a default
Violation primary value 4. CASCADE - propagates primary
key changes to foreign keys.
Important aspect of Reference to data in one relation is based on values
Referential Integrity in another relation.
Broad definition of data Raw facts captured on printed or digital media.
Facts that are collected and stored in a database
Data
system.
Determining It does not follow a data model.
characteristic of
unstructured data
Flat files They contain no internal hierarchical organization.
Data retrieval before Sequentially from simple files.
database management
systems
An attribute or group of attributes that uniquely
Primary Key
identify a tuple in a relation.
A domain of values is necessary for a primary key in
one relation of a database to match with its
Foreign Key matching
corresponding foreign key in another relation of the
same database.
What uniquely identifies each entity in a collection
Alternate Key
of entities but is not the primary key.
A set of columns in a table that can uniquely identify
Candidate Key any record in that table without referring to other
data.
Database indexing The original data is copied to the index.
Indexes in physical To retrieve data DIRECTLY using a pointer.
database design
Index creation on a To optimize data retrievals.
database column
https://quizlet.com/988346073/wgu-c175d426-data-management-exam-review-2025-complete-questions-and-verified-answers-complete-solutions… 2/8
Get 20% off Quizlet Plus after free trial Claim discount
WGU C175/D426 Data Management Exam
Review 2025 Complete Questions And Verified
Answers/ Complete Solutions With Rationales
|Get It 100% Accurate!! Already graded A+
Practice questions for this set
Learn
Studied 7 terms
Nice work, you're crushing it
Continue studying in Learn
Terms in this set (348)
Refers to the MINIMUM number of times an instance
in one entity can be associated with instance of
Modality
another entity (minima). Appears as a 0 or 1 on the
relationship line, next to cardinality.
Requires that ALL foreign key values must either be
Referential Integrity
fully NULL or match some primary key value.
1. Primary key is updated 2. Foreign key is updated 3.
Ways Referential Integrity
Row containing primary key is DELETED 4. Row
can be violated
containing foreign key is INSERTED.
https://quizlet.com/988346073/wgu-c175d426-data-management-exam-review-2025-complete-questions-and-verified-answers-complete-solutions… 1/8
, 12/26/24, 5:37 PM WGU C175/D426 Data Management Exam Review 2025 Complete Questions And Verified Answers/ Complete Solutions Wit…
1. RESTRICT - rejects an insert, update, or delete 2.
Actions to Correct SET NULL - sets invalid foreign keys to null 3. SET
Referential Integrity DEFAULT - sets invalid foreign keys to a default
Violation primary value 4. CASCADE - propagates primary
key changes to foreign keys.
Important aspect of Reference to data in one relation is based on values
Referential Integrity in another relation.
Broad definition of data Raw facts captured on printed or digital media.
Facts that are collected and stored in a database
Data
system.
Determining It does not follow a data model.
characteristic of
unstructured data
Flat files They contain no internal hierarchical organization.
Data retrieval before Sequentially from simple files.
database management
systems
An attribute or group of attributes that uniquely
Primary Key
identify a tuple in a relation.
A domain of values is necessary for a primary key in
one relation of a database to match with its
Foreign Key matching
corresponding foreign key in another relation of the
same database.
What uniquely identifies each entity in a collection
Alternate Key
of entities but is not the primary key.
A set of columns in a table that can uniquely identify
Candidate Key any record in that table without referring to other
data.
Database indexing The original data is copied to the index.
Indexes in physical To retrieve data DIRECTLY using a pointer.
database design
Index creation on a To optimize data retrievals.
database column
https://quizlet.com/988346073/wgu-c175d426-data-management-exam-review-2025-complete-questions-and-verified-answers-complete-solutions… 2/8
