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

e-commerce database application
multiuser database application
single-user database application
data mining database application

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Introduction to Database System
A race condition occurs when

None of the listed here
Both of the listed here
Two concurrent activities interact to cause a processing error
two users of the DBMS are interacting with different files at the same time

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