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21
With an asynchronous system, the requesting system waits for a response in real time.
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Answer: Option B
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22
Query-by-Example (QBE) is the most widely available direct-manipulation database query language.
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Answer: Option A
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23
A fat client is a PC configured for handling user interfaces and some application processing, usually with no or limited local data storage.
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Answer: Option B
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24
Client/server environments use a local area network (LAN) to support a network of personal computers, each with its own storage, that are also able to share common devices and software attached to the LAN.
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Answer: Option A
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25
The database server is responsible for database storage, access, and processing.
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Answer: Option A
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26
The first client/server architectures developed were file servers.
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Answer: Option A
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27
Centralized systems are more susceptible to security threats than client/server architectures.
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Answer: Option B
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28
Writing stored procedures takes less time than using Visual Basic or PowerBuilder to create an application.
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Answer: Option B
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29
Data processing logic includes such activities as data validation and identification of processing errors.
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Answer: Option A
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30
ODBC requires the specific driver.
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Answer: Option A
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