In an E-R model, Oval representsMarks : 1Negative Marks : 0Answer hereentity setsattributesrelationshipslinks

In an Entity-Relationship (E-R) model, the various components serve distinct functions in representing the structure of a database.

1. Entity Sets: An entity set is a collection of similar types of entities. For example, in a university database, "Students" can be an entity set consisting of all student records.

2. Attributes: Attributes are properties or characteristics of entities. Each entity in an entity set has certain attributes. For instance, the "Students" entity set may have attributes like StudentID, Name, Age, and Major.

3. Relationships: Relationships illustrate how entities interact with one another. For example, the relationship between "Students" and "Courses" could be represented by an enrollment relationship, indicating which students are enrolled in which courses.

4. Links: Links refer to the connections made between different entity sets through their relationships. These links show how entities in one set correspond to entities in another set.

In visual representations of E-R models, ovals typically denote attributes, while rectangles denote entity sets, and diamonds denote relationships. This structured approach helps in designing a clear and understandable framework for databases. Understanding these components is crucial for database design and modeling.