WGU C175 Study Notecards (Latest 2025/ 2026 Update) Questions and Verified Answers| 100% Correct| Grade A E-R Model *E-R = Entity - Relationship - ANSWER Diagram of entities together with their attributes and the relationship among them.Intersection Data - ANSWER It is data that describes a many-to- many relationship.Modality - ANSWER It is a minimum number of entity occurrences that can be involved in a relationship.One-to-one Binary Relationship - 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. 1 / 3
Ternary Relationship - ANSWER Involves three different entity types.Unique identifier - ANSWER It is used to uniquely identify each record in a database table.Attribute - 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? - ANSWER One-to-one binary relationship "A salesperson sells to many customers." What is the name of this relationship? - ANSWER One-to-many binary relationship 2 / 3
"A salesperson is authorized to sell many products, and a product can be sold by many salespersons." What is the name of this relationship? - ANSWER Many-to-many binary relationship What is the positioning and meaning for Cardinality and Modality on an E-R model? - 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." - ANSWER "A salesperson may have no customers or many customers." - 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."
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