Managing Multiuser Databases What is the overall responsibility of the DBA? Development, operation, and maintenance of the database and its applications Create and populate tables Both the first and third answers above are correct. Facilitate the development and use of the database Development, operation, and maintenance of the database and its applications Create and populate tables Both the first and third answers above are correct. Facilitate the development and use of the database ANSWER DOWNLOAD EXAMIANS APP
Managing Multiuser Databases Locks placed by the DBMS are called ________ . implicit locks explicit locks exclusive locks shared locks implicit locks explicit locks exclusive locks shared locks ANSWER DOWNLOAD EXAMIANS APP
Managing Multiuser Databases Which of the following disallows both dirty reads and nonrepeatable reads, but allows phantom reads? Read committed Read uncommitted Repeatable read Serializable Read committed Read uncommitted Repeatable read Serializable ANSWER DOWNLOAD EXAMIANS APP
Managing Multiuser Databases A point of synchronization between the database and the transaction log is generally referred to as a stop point. False True False True 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? Phantom read Nonrepeatable read Dirty read Consistent read Phantom read Nonrepeatable read Dirty read Consistent read ANSWER DOWNLOAD EXAMIANS APP
Managing Multiuser Databases Which of the following allows dirty reads, nonrepeatable reads and phantom reads to occur? Read uncommitted Repeatable read Read committed Serializable Read uncommitted Repeatable read Read committed Serializable ANSWER DOWNLOAD EXAMIANS APP
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