Managing Multiuser Databases Locks placed by command 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 Which of the following locks the item from change but not from read? 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 occurs when a transaction rereads data and finds new rows that were inserted by a command transaction since the prior read? Phantom read Dirty read Nonrepeatable read Consistent read Phantom read Dirty read Nonrepeatable read Consistent read ANSWER DOWNLOAD EXAMIANS APP
Managing Multiuser Databases A transaction for which all committed changes are permanent is called: consistent. isolated. durable. atomic. consistent. isolated. durable. atomic. ANSWER DOWNLOAD EXAMIANS APP
Managing Multiuser Databases In this instance, dirty reads are disallowed, while nonrepeatable reads and phantom reads are allowed. Repeatable read Read uncommitted Serializable Read committed Repeatable read Read uncommitted Serializable Read committed ANSWER DOWNLOAD EXAMIANS APP
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