6/18/25, 9:13 AM WGU D426
WGU D426 NEWEST EXAM 2025 -2026 \ACTUAL EXAM
WITH COMPLETE QUESTIONS AND CORRECT DETAILED
ANSWERS \\VERIFIED ANSWERS \LATEST UPDATE
ALREADY GRADED A
A _ of a supertype entity is a Partition
group of
mutually exclusive subtype
entities.
Each partition corresponds to Partition attribute
an optional
____ of the supertype entity.
Variations in cardinality Crow's foot notation
conventions are common.
One popular convention,
called
____, depicts cardinality as a
circle (zero), a short line
(one), or three short lines
(many). The three short
lines look like a bird's foot,
hence the name " ".
Decompose a complex Subject area
model into a group of
related entities, called a
____.
Refer to strong entities as and Independent; dependent
weak
entities as _.
____ is commonly used for Unified Modeling Language (UML)
software
development. Software data
structures are similar to
1/1
3
, 6/18/25, 9:13 AM WGU D426
database structures, so UML
includes ER conventions.
____ stands for Information IDEF1X
DEFinition
version 1x became popular,
in part, due
to early adoption by the
United States Department of
Defense.
____ appeared in an early Chen notation
ER modeling paper by
Peter Chen ___ is not
standardized but often
appears in literature and
tools.
A strong entity becomes a Strong table
____. The primary key must
be unique and non-NULL,
and
should be stable, simple,
and meaningless. Single-
column primary keys are
best, but if no such column
exists, a composite primary
key may have the required
properties.
An _ is a single-column Artificial key
primary key
created by the database
designer when no suitable
single-column or composite
primary key exists.
A subtype entity becomes a Subtype table
____.
A weak entity becomes a ____. Weak table
Column A depends on Depends on
Column B, means each B
value is related to at most
2/1
3
WGU D426 NEWEST EXAM 2025 -2026 \ACTUAL EXAM
WITH COMPLETE QUESTIONS AND CORRECT DETAILED
ANSWERS \\VERIFIED ANSWERS \LATEST UPDATE
ALREADY GRADED A
A _ of a supertype entity is a Partition
group of
mutually exclusive subtype
entities.
Each partition corresponds to Partition attribute
an optional
____ of the supertype entity.
Variations in cardinality Crow's foot notation
conventions are common.
One popular convention,
called
____, depicts cardinality as a
circle (zero), a short line
(one), or three short lines
(many). The three short
lines look like a bird's foot,
hence the name " ".
Decompose a complex Subject area
model into a group of
related entities, called a
____.
Refer to strong entities as and Independent; dependent
weak
entities as _.
____ is commonly used for Unified Modeling Language (UML)
software
development. Software data
structures are similar to
1/1
3
, 6/18/25, 9:13 AM WGU D426
database structures, so UML
includes ER conventions.
____ stands for Information IDEF1X
DEFinition
version 1x became popular,
in part, due
to early adoption by the
United States Department of
Defense.
____ appeared in an early Chen notation
ER modeling paper by
Peter Chen ___ is not
standardized but often
appears in literature and
tools.
A strong entity becomes a Strong table
____. The primary key must
be unique and non-NULL,
and
should be stable, simple,
and meaningless. Single-
column primary keys are
best, but if no such column
exists, a composite primary
key may have the required
properties.
An _ is a single-column Artificial key
primary key
created by the database
designer when no suitable
single-column or composite
primary key exists.
A subtype entity becomes a Subtype table
____.
A weak entity becomes a ____. Weak table
Column A depends on Depends on
Column B, means each B
value is related to at most
2/1
3
