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WGU d NEWEST EXAM WITH 200 REVIEW QUESTIONS & CORRECT VERIFIED ANSWERS ALREADY GRADED A+/ WESTERN GOVERNORS UNIVERSITY D027 ACTUAL EXAM (LATEST)$20.49
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WGU D426 426 2024-2025 NEWEST EXAM WITH
200 REVIEW QUESTIONS & CORRECT
VERIFIED ANSWERS ALREADY GRADED A+/
WESTERN GOVERNORS UNIVERSITY D027
ACTUAL EXAM (LATEST)
The relationship (within the relation) that describes how the
value of one attribute may be used to find the value of another
attribute.
Functional Dependency
3 multiple choice options
An attribute that can be used to find the value of another
attribute in the relation.
Determinant
3 multiple choice options
,Value can be used to find the value of every other non-key
attribute in the table. Unique and minimal.
Candidate Key
3 multiple choice options
A view created and stored on the database. Underlying data is
changed and also updated in this view. Uses memory space.
Materialized View
2 multiple choice options
Not stored in memory. Only computed when used or accessed.
Virtual View
2 multiple choice options
The data about the data. Describes elements such as columns,
names, and data type.
Metadata
, 3 multiple choice options
Ordered collection of elements in parentheses.
Tuple
3 multiple choice options
% of table rows selected by a query
Hit Ration
3 multiple choice options
Reads blocks directly, without accessing an index.
Table Scan
3 multiple choice options
Reads index blocks sequentially in order to locate the needed
table blocks.
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