Managing Multiuser Databases Locks placed by the DBMS are explicit locks. False True False True ANSWER DOWNLOAD EXAMIANS APP
Managing Multiuser Databases What is the overall responsibility of the DBA? Facilitate the development and use of the database Both the first and third answers above are correct. Development, operation, and maintenance of the database and its applications Create and populate tables Facilitate the development and use of the database Both the first and third answers above are correct. Development, operation, and maintenance of the database and its applications Create and populate tables 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 Nonrepeatable read Consistent read Dirty read Phantom read Nonrepeatable read Consistent read Dirty read 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 The overall responsibility of the DBA is to facilitate the development and use of the database. False True False True ANSWER DOWNLOAD EXAMIANS APP
Managing Multiuser Databases Locks placed by command are implicit locks. True False True False ANSWER DOWNLOAD EXAMIANS APP
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