Managing Multiuser Databases The size of the lock is referred to as the lock granularity. 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 Locks placed by the DBMS are explicit locks. False True False True 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 What is the overall responsibility of the DBA? Facilitate the development and use of the database Development, operation, and maintenance of the database and its applications Both the first and third answers above are correct. Create and populate tables Facilitate the development and use of the database Development, operation, and maintenance of the database and its applications Both the first and third answers above are correct. Create and populate tables ANSWER DOWNLOAD EXAMIANS APP
Managing Multiuser Databases Locks placed by the DBMS are called ________ . implicit locks shared locks exclusive locks explicit locks implicit locks shared locks exclusive locks explicit locks ANSWER DOWNLOAD EXAMIANS APP
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