Managing Multiuser Databases The size of a lock is called: lock granularity exclusive lock shared lock implicit lock lock granularity exclusive lock shared lock implicit lock ANSWER DOWNLOAD EXAMIANS APP
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 In optimistic locking, the assumption is made that conflict will occur. 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: atomic. durable. consistent. isolated. atomic. durable. consistent. isolated. ANSWER DOWNLOAD EXAMIANS APP
Managing Multiuser Databases Locks placed by the DBMS are called ________ . exclusive locks explicit locks implicit locks shared locks exclusive locks explicit locks implicit locks shared locks 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
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