Data and Database Administration
Which of the following is the preferred way to recover a database after a transaction in progress terminates abnormally?

Reprocess transactions
Switch to duplicate database
Rollforward
Rollback

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Data and Database Administration
Performance analysis and tuning is which of the following?

Undertaken one time at the time of the implementation of a new application
Undertaken as an ongoing part of managing a database
Undertaken one time at the time of a DBMS installation
Undertaken as an ongoing part of the backup of a database

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