1) Which of the following best defines the Entity Relationship Model (ERM)? a) A model that stores only numeric data in databases b) A diagram that shows the flow of algorithms in programming c) A conceptual model that visually represents entities, attributes, and relationships in a database d) A process of converting ER diagrams into SQL queries 2) In an ERM diagram,the RECTANGLE symbol represents a) Relationship b) Entity c) Attribute d) Cardinality 3) Which of the following is an ENTITY? a) Order b) Product c) Pay d) Enroll 4) the diamond symbol in ERM represents: a) Entity b) Attribute c) Relationship d) Cardinality 5) Many-to-Many cardinality written as: a) 1: M b) M : 1 c) 1:1 d) M : N 6) which of the following corretly matches symbol with meanings? a) Rectangle → Attribute b) Oval → Entity c) Diamond → Relationship d) Double Ellipse → Multivalued Attribute 7) Which of the following is NOT a type of relationship? a) One-to-One b) One-to-Many c) Many-to-Many d) One-to-All 8) What is the purpose of an Entity Relationship Model? a) To store data in tables b) To plan data relationships before creating a database c) To measure computer storage size d) To find the main ID 9) Which of the following is an attribute of the entity Teacher? a) TeacherName b) TeachesClass c) RelationshipType d) PrimaryKey 10) What does Entity mean in ERM? a) The connection between data b) Detailed information about data c) The main object or thing we store data about d) The oval shape in an ERD

ENTITY RELATIONSHIP MODEL (ERM)

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