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MCQ

An on-line commercial site such as Amazon.com is an example of a(n) ________ .

single-user database application

multiuser database application

e-commerce database application

data mining database application

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MCQ

A condition that led to the development of databases was

a demand for more data to support information needs

an increase in the amount of data handled by organizations

the proliferation of data files

All of the above

None of the above.

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MCQ

The purpose of a database is to help people stop using spreadsheets.

True

False

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MCQ

A data dictionary doesn't provide information about:

where data is located

the size of the disk storage device

It allows a many-to-many relationship

It is conceptually simple

It will be the dominant data base of the future

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In SQL, which command is used to add a column/integrity constraint to a table

ADD COLUMN

INSERT COLUMN

MODIFY TABLE

ALTER TABLE

None of the above

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MCQ

If a piece of data is stored in two places in the database, then

storage space is wasted

changing the data is one spot will cause data inconsistency

it can be more easily accessed

both (a) and (b)

None of the above

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category More Database Management System Topics

Miscellaneous or General

Relational Algebra

Database Systems

Data Models

The Relational Database Model

Entity Relationship (ER) Modeling

Advanced Data Modeling

Normalization

Structured Query Language (SQL)

Advanced SQL

Database Design

Transaction and Concurrency

Data Warehouses

Database Administration

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