Multiple choice

In an E-R diagram, an ellipsis represents

  1. entity sets

  2. relationship among entity sets

  3. attributes

  4. link between attributes and entity sets
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C Correct answer
Explanation

In an E-R (Entity-Relationship) diagram, an ellipsis (ellipse or oval shape) represents attributes of entity sets or relationship sets. Attributes describe the properties or characteristics of entities. Entity sets are typically represented by rectangles, and relationships by diamonds, while attributes are shown as ellipses connected to entities or relationships.

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