Managing Multiuser Databases A transaction for which all committed changes are permanent is called: atomic. durable. consistent. isolated. atomic. durable. consistent. isolated. ANSWER DOWNLOAD EXAMIANS APP
Managing Multiuser Databases The goal of database security is to ensure that only authorized users can perform authorized activities at authorized times. False True False True ANSWER DOWNLOAD EXAMIANS APP
Managing Multiuser Databases A phantom read occurs when a transaction rereads data it has previously read and finds modifications or deletions caused by a committed transaction. False True False True ANSWER DOWNLOAD EXAMIANS APP
Managing Multiuser Databases The size of a lock is called: exclusive lock lock granularity shared lock implicit lock exclusive lock lock granularity shared lock implicit lock 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: atomic. consistent. isolated. durable. atomic. consistent. isolated. durable. 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
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