Teaching Haryana (HPSC) Assistant Professor Mock Test 2025 DBMS Introduction and ER Model ER Model

Consider an Entity-Relationship model in which entity sets E1 and E2 are connected by m : 1 relationship R. If E2 completely depends on E1 then what is the symbol used by E2?

1
Ovals that contain underlined identifiers
2
Diamonds with double/bold borde
3
​Ovals with double/bold border
4
Rectangles with double/bold border
5
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