Managing Multiuser Databases The lost update problem is when User A reads data that have been processed by a portion of a transaction from User B. 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 Which of the following locks the item from access of any type? Implicit lock Exclusive lock Shared lock Explicit lock Implicit lock Exclusive lock Shared lock Explicit lock ANSWER DOWNLOAD EXAMIANS APP
Managing Multiuser Databases Which of the following allows dirty reads, nonrepeatable reads and phantom reads to occur? Read uncommitted Read committed Serializable Repeatable read Read uncommitted Read committed Serializable Repeatable read 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 The size of a lock is called: implicit lock exclusive lock lock granularity shared lock implicit lock exclusive lock lock granularity shared lock ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS