Section 3 Quiz
(Answer
all questions in this section)
1. What
are the three properties that every relationship should have? Mark for Review
(1) Points
Name,
optionality, cardinality (*)
A
UID bar, a diamond, an arc
Name,
optionality, arcs
Transferability,
degree, name
2. Relationships
can be either mandatory or optional. True or False? Mark for Review
(1) Points
True
(*)
False
3. In a
business that sells pet food, choose the best relationship name between FOOD
TYPE and ANIMAL (e.g. dog, horse, or cat). (Choose Two) Mark for Review
(1) Points
(Choose
all correct answers)
Each
ANIMAL must be the seller of one or more FOOD TYPES.
Each
FOOD TYPE may be manufactured by one or more ANIMALs.
Each
FOOD TYPE must be suitable for one or more ANIMALs. (*)
Each
FOOD TYPE may be given to one or more ANIMALs. (*)
4. One
Relationship can be mandatory in one direction and optional in the other
direction. True or False? Mark for
Review
(1) Points
True
(*)
False
5. Which
of the following are used to show Cardinality on an ERD? (Choose two) Mark for Review
(1) Points
(Choose
all correct answers)
Crow's
foot. (*)
Solid
line.
Single
toe. (*)
Dashed
line.
6. Which
of the following are true about Cardinality? (Choose two) Mark for Review
(1) Points
(Choose
all correct answers)
Cardinality
tells "how many". (*)
Cardinality
specifies a counting number (like 1, 2, 3, 4 etc.) in a relationship.
Cardinality
specifies whether something is required or not.
Cardinality
specifies only singularity or plurality, but not a specific plural number. (*)
7. Which symbol is used to show that a particular
attribute is mandatory? Mark
for Review
(1) Points
&
#
o
*
(*)
8. Entity
boxes are drawn as Mark for
Review
(1) Points
Soft
Boxes (*)
Hard
Boxes
Normal
Circles
Bold
Circles
9. ERDish
describes a relationship in words. True or False? Mark for Review
(1) Points
True
(*)
False
10. Which of the following are used to show
a relationship on an ERD? (Choose Three)
Mark for Review
(1) Points
(Choose
all correct answers)
Dashed
line. (*)
Crow's
foot. (*)
Solid
line. (*)
#
symbol.
11. When reading a relationship between 2 entities, the
relationship is read both from left to right and right to left. True or False? Mark for Review
(1) Points
True
(*)
False
12. Relationship names are not shown on an ERD. True or
False? Mark for Review
(1) Points
True
False
(*)
13. Matrix Diagrams show Optionality and Cardinality of
the ERDs they document. True or False?
Mark for Review
(1) Points
True
False
(*)
14. Matrix Diagrams are developed BEFORE the
ERD. True or False? Mark
for Review
(1) Points
True
(*)
False
15. Matrix Diagrams are used to verify that
all relationships have been identified for an ERD. True or False? Mark for Review
(1) Points
True
(*)
False
1. Which
of the following are used to show a relationship on an ERD? (Choose Three) Mark for Review
(1) Points
(Choose
all correct answers)
#
symbol.
Solid
line. (*)
Dashed
line. (*)
Crow's
foot. (*)
2. Relationship
names are not shown on an ERD. True or False?
Mark for Review
(1) Points
True
False
(*)
3. When
reading the relationships in an ERD, you are said to be speaking: Mark for Review
(1) Points
Entity-ish
Gibberish
ERDish
(*)
Relationship-ish
4. ERDish
describes a relationship in words. True or False? Mark for Review
(1) Points
True
(*)
False
5. What
are the three properties that every relationship should have? Mark for Review
(1) Points
Name,
optionality, arcs
Transferability,
degree, name
Name,
optionality, cardinality (*)
A
UID bar, a diamond, an arc
6. Relationships
can be either mandatory or optional. True or False? Mark for Review
(1) Points
True
(*)
False
7. Which
of the following are used to show Cardinality on an ERD? (Choose two) Mark for Review
(1) Points
(Choose
all correct answers)
Single
toe. (*)
Dashed
line.
Crow's
foot. (*)
Solid
line.
8. Relationships
always exist between Mark for
Review
(1) Points
3 or
more attributes
3 or
more entities
2
entities (or one entity and itself) (*)
2
attributes
9. In a
business that sells pet food, choose the best relationship name between FOOD
TYPE and ANIMAL (e.g. dog, horse, or cat). (Choose Two) Mark for Review
(1) Points
(Choose
all correct answers)
Each
ANIMAL must be the seller of one or more FOOD TYPES.
Each
FOOD TYPE may be given to one or more ANIMALs. (*)
Each
FOOD TYPE may be manufactured by one or more ANIMALs.
Each
FOOD TYPE must be suitable for one or more ANIMALs. (*)
10. Which of the following are true about
Cardinality? (Choose two)
Mark for Review
(1) Points
(Choose
all correct answers)
Cardinality
specifies whether something is required or not.
Cardinality
specifies only singularity or plurality, but not a specific plural number. (*)
Cardinality
tells "how many". (*)
Cardinality
specifies a counting number (like 1, 2, 3, 4 etc.) in a relationship.
11. To identify an attribute as part of a
unique identifier on an ER diagram, the # symbol goes in front of it. True or
False? Mark for Review
(1) Points
True
(*)
False
12. Entity names are always singular. True
or False? Mark for Review
(1) Points
True
(*)
False
13. Matrix Diagrams show Optionality and
Cardinality of the ERDs they document. True or False? Mark for Review
(1) Points
True
False
(*)
14. Matrix Diagrams are developed BEFORE the
ERD. True or False? Mark
for Review
(1) Points
True
(*)
False
15. Matrix Diagrams are used to verify that
all relationships have been identified for an ERD. True or False? Mark for Review
(1) Points
True
(*)
False
1. Entity
names are always singular. True or False?
Mark for Review
(1) Points
True
(*)
False
2. Entity
boxes are drawn as Mark for
Review
(1) Points
Normal
Circles
Hard
Boxes
Soft
Boxes (*)
Bold
Circles
3. Relationship
names are not shown on an ERD. True or False?
Mark for Review
(1) Points
True
False
(*)
4. ERDish
describes a relationship in words. True or False? Mark for Review
(1) Points
True
(*)
False
5. Which
of the following are used to show a relationship on an ERD? (Choose Three) Mark for Review
(1) Points
(Choose
all correct answers)
Crow's
foot. (*)
Solid
line. (*)
#
symbol.
Dashed
line. (*)
6. When
reading a relationship between 2 entities, the relationship is read both from
left to right and right to left. True or False?
Mark for Review
(1) Points
True
(*)
False
7. Which
of the following are true about Cardinality? (Choose two) Mark for Review
(1) Points
(Choose
all correct answers)
Cardinality
specifies whether something is required or not.
Cardinality
tells "how many". (*)
Cardinality
specifies only singularity or plurality, but not a specific plural number. (*)
Cardinality
specifies a counting number (like 1, 2, 3, 4 etc.) in a relationship.
8. Which
of the following are true about Relationship Optionality? (Choose two) Mark for Review
(1) Points
(Choose
all correct answers)
Optionality
specifies only singularity or plurality, but not a specific plural number.
Optionality
answers "may or must". (*)
Optionality
specifies a counting number (like 1, 2, 3, 4 etc.) in a relationship.
Optionality
specifies whether something is required or not. (*)
9. In a
business that sells pet food, choose the best relationship name between FOOD
TYPE and ANIMAL (e.g. dog, horse, or cat). (Choose Two) Mark for Review
(1) Points
(Choose
all correct answers)
Each
FOOD TYPE may be given to one or more ANIMALs. (*)
Each
FOOD TYPE may be manufactured by one or more ANIMALs.
Each
FOOD TYPE must be suitable for one or more ANIMALs. (*)
Each
ANIMAL must be the seller of one or more FOOD TYPES.
10. What are the three properties that every relationship
should have? Mark for Review
(1) Points
Transferability,
degree, name
Name,
optionality, arcs
Name,
optionality, cardinality (*)
A
UID bar, a diamond, an arc
11. Relationship Cardinality is important.
True or False? Mark for Review
(1) Points
True
(*)
False
12. Relationships can be either mandatory or
optional. True or False? Mark
for Review
(1) Points
True
(*)
False
13. Matrix Diagrams are used to verify that
all relationships have been identified for an ERD. True or False? Mark for Review
(1) Points
True
(*)
False
14. Matrix Diagrams are developed BEFORE the
ERD. True or False? Mark
for Review
(1) Points
True
(*)
False
15. Matrix Diagrams show Optionality and
Cardinality of the ERDs they document. True or False? Mark for Review
(1) Points
True
False
(*)
1. Entity
boxes are drawn as Mark for
Review
(1) Points
Normal
Circles
Hard
Boxes
Bold
Circles
Soft
Boxes (*)
2. Entity
names are always singular. True or False?
Mark for Review
(1) Points
True
(*)
False
3. Matrix
Diagrams are developed BEFORE the ERD. True or False? Mark for Review
(1) Points
True
(*)
False
4. Matrix
Diagrams show Optionality and Cardinality of the ERDs they document. True or
False? Mark for Review
(1) Points
True
False
(*)
5. Matrix
Diagrams are used to verify that all relationships have been identified for an
ERD. True or False? Mark for Review
(1) Points
True
(*)
False
6. Which
of the following are used to show a relationship on an ERD? (Choose Three) Mark for Review
(1) Points
(Choose
all correct answers)
#
symbol.
Dashed
line. (*)
Crow's
foot. (*)
Solid
line. (*)
7. When
reading the relationships in an ERD, you are said to be speaking: Mark for Review
(1) Points
Entity-ish
Relationship-ish
Gibberish
ERDish
(*)
8. Relationship
names are not shown on an ERD. True or False?
Mark for Review
(1) Points
True
False
(*)
9. ERDish
describes a relationship in words. True or False? Mark for Review
(1) Points
True
(*)
False
10. Which of the following are true about
Relationship Optionality? (Choose two)
Mark for Review
(1) Points
(Choose
all correct answers)
Optionality
specifies a counting number (like 1, 2, 3, 4 etc.) in a relationship.
Optionality
answers "may or must". (*)
Optionality
specifies only singularity or plurality, but not a specific plural number.
Optionality
specifies whether something is required or not. (*)
11. One Relationship can be mandatory in one
direction and optional in the other direction. True or False? Mark for Review
(1) Points
True
(*)
False
12. Relationships always exist between Mark for Review
(1) Points
3 or
more attributes
3 or
more entities
2
entities (or one entity and itself) (*)
2
attributes
13. Which of the following are true about Cardinality?
(Choose two) Mark for
Review
(1) Points
(Choose
all correct answers)
Cardinality
specifies whether something is required or not.
Cardinality
specifies a counting number (like 1, 2, 3, 4 etc.) in a relationship.
Cardinality
tells "how many". (*)
Cardinality
specifies only singularity or plurality, but not a specific plural number. (*)
14. Which of the following are used to show Cardinality
on an ERD? (Choose two) Mark
for Review
(1) Points
(Choose
all correct answers)
Single
toe. (*)
Crow's
foot. (*)
Dashed
line.
Solid
line.
15. What are the three properties that every
relationship should have? Mark for
Review
(1) Points
A
UID bar, a diamond, an arc
Transferability,
degree, name
Name,
optionality, cardinality (*)
Name,
optionality, arcs
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