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 allows dirty reads, nonrepeatable reads and phantom reads to occur? Serializable Repeatable read Read committed Read uncommitted Serializable Repeatable read Read committed Read uncommitted ANSWER DOWNLOAD EXAMIANS APP
Managing Multiuser Databases The advantage of optimistic locking is that: the lock never needs to be obtained. the lock is obtained before the transaction has processed. transactions that are best suited are those with a lot of activity. the lock is obtained only after the transaction has processed. the lock never needs to be obtained. the lock is obtained before the transaction has processed. transactions that are best suited are those with a lot of activity. the lock is obtained only after the transaction has processed. ANSWER DOWNLOAD EXAMIANS APP
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 What is the overall responsibility of the DBA? Both the first and third answers above are correct. Create and populate tables Development, operation, and maintenance of the database and its applications Facilitate the development and use of the database Both the first and third answers above are correct. Create and populate tables Development, operation, and maintenance of the database and its applications Facilitate the development and use of the database ANSWER DOWNLOAD EXAMIANS APP
Managing Multiuser Databases Which of the following locks the item from access of any type? Exclusive lock Shared lock Explicit lock Implicit lock Exclusive lock Shared lock Explicit lock Implicit lock ANSWER DOWNLOAD EXAMIANS APP
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