Managing Multiuser Databases A transaction in which either all of the database actions occur or none of them do is called: isolated. consistent. durable. atomic. isolated. consistent. durable. atomic. 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. True False True False ANSWER DOWNLOAD EXAMIANS APP
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 occurs when one transaction reads a changed record that has not been committed to the database? Nonrepeatable read Dirty read Consistent read Phantom read Nonrepeatable read Dirty read Consistent read Phantom read ANSWER DOWNLOAD EXAMIANS APP
Managing Multiuser Databases A point of synchronization between the database and the transaction log is generally referred to as a stop point. False True False True ANSWER DOWNLOAD EXAMIANS APP
Managing Multiuser Databases An exclusive lock locks the item from change but not from read. False True False True ANSWER DOWNLOAD EXAMIANS APP
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