Managing Multiuser Databases The size of a lock is called: shared lock implicit lock exclusive lock lock granularity shared lock implicit lock exclusive lock lock granularity ANSWER DOWNLOAD EXAMIANS APP
Managing Multiuser Databases Resource locking is a process to prevent multiple applications from obtaining copies of the same record when the record is about to be changed. False True False True 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. True False True False ANSWER DOWNLOAD EXAMIANS APP
Managing Multiuser Databases Which of the following disallows both dirty reads and nonrepeatable reads, but allows phantom reads? Read committed Repeatable read Serializable Read uncommitted Read committed Repeatable read Serializable Read uncommitted ANSWER DOWNLOAD EXAMIANS APP
Managing Multiuser Databases The size of the lock is referred to as the lock granularity. True False True False ANSWER DOWNLOAD EXAMIANS APP
Managing Multiuser Databases A transaction in which either all of the database actions occur or none of them do is called: isolated. atomic. consistent. durable. isolated. atomic. consistent. durable. ANSWER DOWNLOAD EXAMIANS APP
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