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Introduction to Database System

Introduction to Database System
Which of the following is not a logical data-base structure?

network
relational
tree
chain

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Introduction to Database System
In an Enterprise-class database system, business users interact directly with database applications that interact with the DBMS, which directly accesses the database data.

False
True

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Introduction to Database System
A database management system might consist of application programs and a software package called

AUTOFLOW
FORTRAN
TOTAL
BPL

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Introduction to Database System
A relation is in Boyce-Codd Normal Form (BCNF) if every determinant is a composite key.

False
True

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Introduction to Database System
Which of the following is not an advantage of the data-base approach?

program/data independence
All of these
ability to associate related data
elimination of the data redundancy
increased security

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Introduction to Database System
Entity instances are associated by relationship classes.

True
False

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