Introduction to Database System Which of the following is true of a network structure? It is conceptually simple It will be the dominant data base of the future It allows a many-to-many relationship It is a physical representation of the data It is conceptually simple It will be the dominant data base of the future It allows a many-to-many relationship It is a physical representation of the data ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A ____ Contains the smallest unit of meaningful data, so you might call it the basic building block for a data file. Records File structure Database Fields Records File structure Database Fields ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Two files may be joined into a third file if they have a row in common they have no records with the same value in the common field None of these they have a field in common both (b) and (c) they have a row in common they have no records with the same value in the common field None of these they have a field in common both (b) and (c) ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which type of entity represents a logical generalization whose actual occurrence is represented by a second, associated entity? Supertype entity Subtype entity Instance entity Archetype entity Supertype entity Subtype entity Instance entity Archetype entity ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System What is the abbreviation used for a software package that permits the users to create, retrieve and maintain records in a database? FMS EMMS None of these DBMS DASD FMS EMMS None of these DBMS DASD ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In which of the following can many entity instances of one type be related to many entity instances of another type? Composite Relationship One-to-Many Relationship Many-to-Many Relationship One-to-One Relationship Composite Relationship One-to-Many Relationship Many-to-Many Relationship One-to-One Relationship ANSWER DOWNLOAD EXAMIANS APP
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