Managing Multiuser Databases Which of the following locks the item from change but not from read? Exclusive lock Shared lock Explicit lock Implicit lock Exclusive lock Shared lock Explicit lock Implicit lock ANSWER DOWNLOAD EXAMIANS APP
Managing Multiuser Databases The size of a lock is called: implicit lock exclusive lock shared lock lock granularity implicit lock exclusive lock shared lock lock granularity ANSWER DOWNLOAD EXAMIANS APP
Managing Multiuser Databases When one transaction reads a changed record that has not been committed to the database a filthy read occurs. 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 In this instance, dirty reads are disallowed, while nonrepeatable reads and phantom reads are allowed. Read committed Serializable Repeatable read Read uncommitted Read committed Serializable Repeatable read Read uncommitted 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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