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 The goal of database security is to ensure that only authorized users can perform authorized activities at authorized times. True False True False ANSWER DOWNLOAD EXAMIANS APP
Managing Multiuser Databases A transaction for which all committed changes are permanent is called: durable. consistent. atomic. isolated. durable. consistent. atomic. isolated. ANSWER DOWNLOAD EXAMIANS APP
Managing Multiuser Databases Locks placed by command are called ________ . exclusive locks implicit locks shared locks explicit locks exclusive locks implicit locks shared locks explicit locks ANSWER DOWNLOAD EXAMIANS APP
Managing Multiuser Databases The size of a lock is referred to as lock sizing. False True False True ANSWER DOWNLOAD EXAMIANS APP
Managing Multiuser Databases Which of the following locks the item from change but not from read? Explicit lock Shared lock Implicit lock Exclusive lock Explicit lock Shared lock Implicit lock Exclusive lock ANSWER DOWNLOAD EXAMIANS APP
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