Multiple Choice
The Entity-Relationship (E-R) model is _____.
A) a diagramming technique that describes record structures (i.e. the fields that make up the records of a file)
B) an alternative to indexing and hashing as a means for providing direct access in files
C) a diagramming technique that describes entities, their attributes, and the relationships between them
D) an alternative to file design in which attributes are used instead of fields
E) a diagramming technique that relates entities to each other, attributes to each other, and relationships to each other
Correct Answer:

Verified
Correct Answer:
Verified
Q45: In a one-to-many unary relationship an occurrence
Q46: In a one-to-many unary relationship an occurrence
Q47: The modality of a relationship is _.<br>A)
Q48: A one-to-one unary relationship involves a single
Q49: In a many-to-many unary relationship an occurrence
Q51: In a many-to-many unary relationship an occurrence
Q52: A dependent entity _.<br>A) is the same
Q53: An association between entities is a(n) _.<br>A)
Q54: Depending on the attributes and circumstances present,
Q55: In a many-to-many binary relationship an occurrence