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Data and Database Administration

Data and Database Administration
Information repositories are replacing data dictionaries in many organizations.

True
False

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Data and Database Administration
Mirrored databases are almost always provided in high-availability systems.

True
False

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Data and Database Administration
A transaction log shows before and after images of records that have been modified by transactions.

False
True

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Data and Database Administration
If both data and database administration exist in an organization, the database administrator is responsible for which of the following?

Data modeling
All of these
Database design
Metadata

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Data and Database Administration
Locking may cause which of the following problems?

Deadlock
Erroneous updates
Versioning
All of these

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Data and Database Administration
With concurrent processing involving updates, a database with concurrency control will be compromised due to interference between users.

False
True

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