A pair of perpendicular (crossing) lines across a relationship line, next to an entity, indicates that:

Question

BlackTom AI · Accepted Answer

In this question, we’re evaluating what the symbol of a pair of perpendicular crossing lines across a relationship line, placed next to an entity, conveys about cardinality.
Option 1 claims: 'The entity at the other end of the line can have a maximum of eleven relationship with the entity.' This is not consistent with the typical meaning of perpendicular crossings in relationship notation, which do not specify an eleven-relationship maximum here. Therefore, this option misstates the allowed cardinality.
Option 2 says: 'No answer text provided.' Since the prompt does include answer options and a correct answer field, this option is irrelevant and should be treated as invalid by design.
Option 3 asserts: 'The entity at the other end of the line must have a minimum of one and a maximum of one relationship with the entity.' The combination of a lower bound of at least one and an upper bound of at most one corresponds to exactly one relationship. The perpendicular crossing on the relationship line near the entity is the notation that enforces this single, mandatory link, which aligns with the concept of one-and-only-one participation from that side.
Option 4 states: 'The entity at the other end of the line may have only one but a maximum of two relationship with the entity.' This describes a 1-to-2 range, which conflicts with the precise 1-to-1 constraint implied by the perpendicular crossing symbol, so it is incorrect.
To summarize the reasoning for each choice: option 1 overestimates the upper bound, option 2 is non-informative and invalid in this context, option 4 allows a range up to two which contradicts the 1-to-1 interpretation, and option 3 matches the exact cardinality implied by the perpendicular crossing notation, indicating one and only one relationship.

BUSI_V 335 101 102 2025W1 Module 10 Quiz - Design Notation and Software

A pair of perpendicular (crossing) lines across a relationship line, next to an entity, indicates that:

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类似问题

In an ER diagram, the weak entity is typically depicted with a ___ _, and the relationship between the weak entity and the strong entity is shown with a _____.

In the following diagram, which of the answers below is true?

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Question at position 49 In an ERD, cardinality specifiesThe range of allowable values for an attributeThe unique identifier for an entityThe minimum and maximum number of instances of one entity that can be associated with instances of another entityThe number of attributes within an entity

Question at position 16 What does a "relationship" in an ERD represent?A specific attribute within an entityThe primary attribute of an entityAn association between two or more entitiesThe unique identifier of an entity

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BUSI_V 335 101 102 2025W1 Module 10 Quiz - Design Notation and Software

A pair of perpendicular (crossing) lines across a relationship line, next to an entity, indicates that:

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类似问题

In an ER diagram, the weak entity is typically depicted with a _________ ___________, and the relationship between the weak entity and the strong entity is shown with a __________ ___________.

In the following diagram, which of the answers below is true?

Identify the minimum cardinality of any E-R Diagram relationship:

In an ER-Diagram, relationship cardinality is represented as a:

in ERDplus a label:

Observe the ER Diagram for the ABC Retailer: Which of the following is true according to the ABC Retailer ER diagram?

Question at position 49 In an ERD, cardinality specifiesThe range of allowable values for an attributeThe unique identifier for an entityThe minimum and maximum number of instances of one entity that can be associated with instances of another entityThe number of attributes within an entity

Question at position 16 What does a "relationship" in an ERD represent?A specific attribute within an entityThe primary attribute of an entityAn association between two or more entitiesThe unique identifier of an entity

更多留学生实用工具

希望你的学习变得更简单

In an ER diagram, the weak entity is typically depicted with a ___ _, and the relationship between the weak entity and the strong entity is shown with a _____.