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Databases · ER Model
Official IIT answer key · IIT Delhi · Audited Aug 2026
GATE CSE 2020 Q14 · MCQ · 1 mark
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Topic notes
GATE tests the ER-model and conceptual design across foundational definitions, standard notation mapping, ER-to-relational schema conversion, and weak entity constraints. Questions range from conceptual 1-mark MCQs verifying properties of entities/relationships and DBMS schema architectures to 2-mark NATs calculating the minimum number of relational tables needed in 3NF. The focus is on precision regarding atomicity, participation constraints, and table reduction rules.
Full ER Model guide →Which one of the following is used to represent the supporting many-one relationships of a weak entity set in an entity-relationship diagram?
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