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Introduction to Database System

Introduction to Database System
An identifier determines the type of relationship that an entity has.

True
False

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Introduction to Database System
Which type of entity is related to two or more associated entities that each contain specialized attributes that apply to some but not all of the instances of the entity?

Supertype entity
Subtype entity
Instance entity
Archetype entity

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Introduction to Database System
What is the name given to the database management system which is able to handle full text data, image data, audio and video?

Multimedia
Full media
Graphics media
Hypertext

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Introduction to Database System
Two files may be joined into a third file if

they have a row in common
None of these
they have no records with the same value in the common field
they have a field in common
both (b) and (c)

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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?

DBMS
DASD
FMS
None of these
EMMS

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Introduction to Database System
Which of the following indicates the maximum number of entities that can be involved in a relationship?

ERD
Minimum cardinality
Greater Entity Count (GEC)
Maximum cardinality

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