Data and Database Administration
A traditional data administrator performs which of the following roles?

Tune database performance
Establish backup and recovery procedures
Resolve data ownership issues
Protect the security of the database

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Data and Database Administration
Concurrency control is important for which of the following reasons?

To ensure data integrity while reading data occurs to the database in a single-user environment
To ensure data integrity when updates occur to the database in a multiuser environment
To ensure data integrity when updates occur to the database in a single-user environment
To ensure data integrity while reading data occurs to the database in a multiuser environment

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