Which of the following is NOT a component of the ER Model? A) Entity B) Attribute C) Identifier D) Relationship | Card: 3 / 50 |
True or False: A key attribute is an attribute that can have multiple values for a single entity. | Card: 7 / 50 |
What is the cardinality of a relationship where each entity in each entity set can participate only once? | Card: 15 / 50 |
Which of the following represents a relationship type? A) Oval B) Diamond C) Rectangle D) Circle | Card: 17 / 50 |
Riddle: I represent the number of entities participating in a relationship set. What am I? | Card: 19 / 50 |
The relationship between a weak entity type and its identifying strong entity type is called ______. | Card: 23 / 50 |
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In a binary relationship with total participation on one side, how many tables are required? | Card: 27 / 50 |
Fill in the blank: An attribute that can be derived from other attributes is called ______. | Card: 29 / 50 |
Which participation constraint indicates that an entity may or may not participate in a relationship? | Card: 31 / 50 |
Riddle: I’m a relationship where a student can enroll in multiple courses, and each course can have multiple students. What am I? | Card: 33 / 50 |
True or False: The minimum number of tables required for a Many to Many relationship is two. | Card: 35 / 50 |
In a one to one relationship with total participation on both ends, how many tables are required? | Card: 39 / 50 |
What is the primary key for the relationship in a one to one relationship with no total participation? | Card: 41 / 50 |
Fill in the blank: A sub-class relationship is total if every super-class entity is associated with some ______ entity. | Card: 43 / 50 |
True or False: In the Enhanced ER Model, specialization refers to creating a more general category. | Card: 47 / 50 |
Riddle: I’m a union of multiple classes, where members can belong to any of the classes. What am I? | Card: 49 / 50 |






