Data Management Foundations WGU C175
Exam Questions and Answers (2026/2027) |
100% Verified Solutions | A+ Study Pack
• Information. CORRECT ANSWER: The transformation of raw data into useful facts.
• Punch Card. CORRECT ANSWER: A card that is perforated and can hold commands
or data.
• Structured Data. CORRECT ANSWER: Information with a high degree of organization.
• Unstructured Data. CORRECT ANSWER: Information that does not have structure
(such as text)
• Binary Relationship. CORRECT ANSWER: A relationship between two entity types.
• Unary Relationship. CORRECT ANSWER: An associate occurrence of an entity type
with other occurrences of the same entity type.
• Cardinality. CORRECT ANSWER: The maximum number of entities that can be
involved in a particular relationship.
• E-R Model
*E-R = Entity - Relationship. CORRECT ANSWER: Diagram of entities together with
their attributes and the relationship among them.
• Intersection Data. CORRECT ANSWER: It is data that describes a many-to-many
relationship.
• Modality. CORRECT ANSWER: It is a minimum number of entity occurrences that can
be involved in a relationship.
• One-to-one Binary Relationship. CORRECT ANSWER: It means that a single
occurrence of one entity type can be associated with a single occurrence of the other
entity type and vice versa.
• Ternary Relationship. CORRECT ANSWER: Involves three different entity types.
• Unique identifier. CORRECT ANSWER: It is used to uniquely identify each record in a
database table.
• Attribute. CORRECT ANSWER: A property, characteristic, or fact that we know about
an entity.
, • "A salesperson works in one office."
What is the name of this relationship?. CORRECT ANSWER: One-to-one binary
relationship
• "A salesperson sells to many customers."
What is the name of this relationship?. CORRECT ANSWER: One-to-many binary
relationship
• "A salesperson is authorized to sell many products, and a product can be sold by
many salespersons."
What is the name of this relationship?. CORRECT ANSWER: Many-to-many binary
relationship
• What is the positioning and meaning for Cardinality and Modality on an E-R model?.
CORRECT ANSWER: Cardinality is the outer symbol; represents the maximum.
Modality is the inner symbol; represents the minimum.
• "A salesperson works in a minimum of one and a maximum of one office, and an office
may be occupied by or assigned to a minimum of zero and a maximum of one
salesperson.". CORRECT ANSWER:
• "A salesperson may have no customers or many customers.". CORRECT ANSWER:
• Describe the ER model for "Each salesperson is authorized to sell to at least one or
many products, and each product can be sold by at least one or many salespeople.".
CORRECT ANSWER:
• "One salesperson backs-up another salesperson."
What is the name of this model?. CORRECT ANSWER: One-to-one unary relationship
• "A salesperson manages zero to many other salespersons, and a salesperson is
managed by exactly one other salesperson."
What is the name of this model?. CORRECT ANSWER: One-to-many unary
relationship
• "A product can either be part of no other products or be part of several other products,
and a product can either be composed of no other products or be composed of several
other products."
Exam Questions and Answers (2026/2027) |
100% Verified Solutions | A+ Study Pack
• Information. CORRECT ANSWER: The transformation of raw data into useful facts.
• Punch Card. CORRECT ANSWER: A card that is perforated and can hold commands
or data.
• Structured Data. CORRECT ANSWER: Information with a high degree of organization.
• Unstructured Data. CORRECT ANSWER: Information that does not have structure
(such as text)
• Binary Relationship. CORRECT ANSWER: A relationship between two entity types.
• Unary Relationship. CORRECT ANSWER: An associate occurrence of an entity type
with other occurrences of the same entity type.
• Cardinality. CORRECT ANSWER: The maximum number of entities that can be
involved in a particular relationship.
• E-R Model
*E-R = Entity - Relationship. CORRECT ANSWER: Diagram of entities together with
their attributes and the relationship among them.
• Intersection Data. CORRECT ANSWER: It is data that describes a many-to-many
relationship.
• Modality. CORRECT ANSWER: It is a minimum number of entity occurrences that can
be involved in a relationship.
• One-to-one Binary Relationship. CORRECT ANSWER: It means that a single
occurrence of one entity type can be associated with a single occurrence of the other
entity type and vice versa.
• Ternary Relationship. CORRECT ANSWER: Involves three different entity types.
• Unique identifier. CORRECT ANSWER: It is used to uniquely identify each record in a
database table.
• Attribute. CORRECT ANSWER: A property, characteristic, or fact that we know about
an entity.
, • "A salesperson works in one office."
What is the name of this relationship?. CORRECT ANSWER: One-to-one binary
relationship
• "A salesperson sells to many customers."
What is the name of this relationship?. CORRECT ANSWER: One-to-many binary
relationship
• "A salesperson is authorized to sell many products, and a product can be sold by
many salespersons."
What is the name of this relationship?. CORRECT ANSWER: Many-to-many binary
relationship
• What is the positioning and meaning for Cardinality and Modality on an E-R model?.
CORRECT ANSWER: Cardinality is the outer symbol; represents the maximum.
Modality is the inner symbol; represents the minimum.
• "A salesperson works in a minimum of one and a maximum of one office, and an office
may be occupied by or assigned to a minimum of zero and a maximum of one
salesperson.". CORRECT ANSWER:
• "A salesperson may have no customers or many customers.". CORRECT ANSWER:
• Describe the ER model for "Each salesperson is authorized to sell to at least one or
many products, and each product can be sold by at least one or many salespeople.".
CORRECT ANSWER:
• "One salesperson backs-up another salesperson."
What is the name of this model?. CORRECT ANSWER: One-to-one unary relationship
• "A salesperson manages zero to many other salespersons, and a salesperson is
managed by exactly one other salesperson."
What is the name of this model?. CORRECT ANSWER: One-to-many unary
relationship
• "A product can either be part of no other products or be part of several other products,
and a product can either be composed of no other products or be composed of several
other products."
