WCU C170 : Pre-assessment Questions & Correct Answers | Grade A+

A salesperson is authorized to sell many products and a product can be sold by many salespersons. Which kind of binary relationship does this scenario describe? A) One-to-one B) One-to-many C) Many-to-many D) One-to-one binary Ans- Many-to-many {{ Diagram: A product has at least one component At least one component goes into a product }} Which kind of relationship is displayed in this entity-relationship diagram? A) One-to-one binary B) One-to-one unary C) Many-to-many binary D) Many-to-many unary Ans- Many-to-many unary {{ Diagram: A salesperson backs up a salesperson A salesperson is backed up by a salesperson }} Which kind of relationship is displayed in this entity-relationship diagram? A) Unary one-to-one B) Unary many-to-many C) Binary one-to-one D) Binary many-to-man