Managing Multiuser Databases Which of the following allows dirty reads, nonrepeatable reads and phantom reads to occur? Repeatable read Serializable Read uncommitted Read committed Repeatable read Serializable Read uncommitted Read committed 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? Dirty read Consistent read Phantom read Nonrepeatable read Dirty read Consistent read Phantom read Nonrepeatable read ANSWER DOWNLOAD EXAMIANS APP
Managing Multiuser Databases Which of the following refers to a cursor type that when the cursor is opened, a primary key value is saved for each row in the recordset; when the application accesses a row, the key is used to fetch the current values of the row? Static Keyset Dynamic Forward only Static Keyset Dynamic Forward only ANSWER DOWNLOAD EXAMIANS APP
Managing Multiuser Databases Which of the following locks the item from change but not from read? Implicit lock Exclusive lock Explicit lock Shared lock Implicit lock Exclusive lock Explicit lock Shared lock ANSWER DOWNLOAD EXAMIANS APP
Managing Multiuser Databases Dirty read, nonrepeatable, and phantom reads are not possible in this instance. Repeatable read Read committed Serializable Read uncommitted Repeatable read Read committed Serializable Read uncommitted 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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