Managing Multiuser Databases A transaction is a series of actions to be taken on the database so that either all of them are performed successfully or none of them are performed at all. False True False True ANSWER DOWNLOAD EXAMIANS APP
Managing Multiuser Databases Which of the following disallows both dirty reads and nonrepeatable reads, but allows phantom reads? Read uncommitted Serializable Read committed Repeatable read Read uncommitted Serializable Read committed Repeatable read ANSWER DOWNLOAD EXAMIANS APP
Managing Multiuser Databases The transaction log contains a copy of every database record (or page) after it has changed. These records are called before images. False True False True ANSWER DOWNLOAD EXAMIANS APP
Managing Multiuser Databases When two transactions are being processed against the database at the same time they are termed concurrent transactions. False True False True ANSWER DOWNLOAD EXAMIANS APP
Managing Multiuser Databases Dirty read, nonrepeatable, and phantom reads are not possible in this instance. Serializable Repeatable read Read committed Read uncommitted Serializable Repeatable read Read committed Read uncommitted ANSWER DOWNLOAD EXAMIANS APP
Managing Multiuser Databases The overall responsibility of the DBA is to facilitate the development and use of the database. True False True False ANSWER DOWNLOAD EXAMIANS APP
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