WGU D426 Data management Foundations V3
Questions and Answers Comprehensive Self-
Assessment Guide Latest 2025/2026 Update.
1
Represents a union of the data sets
WHERE LIKE
AND OR
2
,Checks each query for syntax errors and converts valid queries to an
internal representation.
Query Parser Query Optimizer
Query Selector Query Checker
3
States that a distributed database cannot be Consistent, Available, and
Petition-tolerant simutaneously. Availability refers to individual nodes.
Consistent database - confirms to all rules at all times. Network partition -
forms when a network error prevents nodes from communicating. Petition-
tolerant - database that continues to function when a network partition
occurs.
CAP Theorem Analytic Data
Data Warehouse Refresh Replicated database
, 4
A conceptual framework for database systems with three parts: Data
Structures (prescribe how data is organized), Operations (manipulates data
structures), Rules (govern valid data).
Data Model Database Model
Relational Model Index Model
5
The path from the top-level block to the bottom-level block.
Step Route
Branch Level
, 6
Runs on a parallel computer or cluster
Parallel Database Cluster
Distributed Database Local Transaction
7
Interact directly with database users and administrators and send queries to
the query processor. Includes Connectors & APIs, Workbench, and utility
programs.
Storage Engine Architecture
Tools Connection Manager
Questions and Answers Comprehensive Self-
Assessment Guide Latest 2025/2026 Update.
1
Represents a union of the data sets
WHERE LIKE
AND OR
2
,Checks each query for syntax errors and converts valid queries to an
internal representation.
Query Parser Query Optimizer
Query Selector Query Checker
3
States that a distributed database cannot be Consistent, Available, and
Petition-tolerant simutaneously. Availability refers to individual nodes.
Consistent database - confirms to all rules at all times. Network partition -
forms when a network error prevents nodes from communicating. Petition-
tolerant - database that continues to function when a network partition
occurs.
CAP Theorem Analytic Data
Data Warehouse Refresh Replicated database
, 4
A conceptual framework for database systems with three parts: Data
Structures (prescribe how data is organized), Operations (manipulates data
structures), Rules (govern valid data).
Data Model Database Model
Relational Model Index Model
5
The path from the top-level block to the bottom-level block.
Step Route
Branch Level
, 6
Runs on a parallel computer or cluster
Parallel Database Cluster
Distributed Database Local Transaction
7
Interact directly with database users and administrators and send queries to
the query processor. Includes Connectors & APIs, Workbench, and utility
programs.
Storage Engine Architecture
Tools Connection Manager
