Managing Multiuser Databases Locks placed by the DBMS are explicit locks. False True False True 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. True False True False ANSWER DOWNLOAD EXAMIANS APP
Managing Multiuser Databases What is the overall responsibility of the DBA? Facilitate the development and use of the database Create and populate tables Development, operation, and maintenance of the database and its applications Both the first and third answers above are correct. Facilitate the development and use of the database Create and populate tables Development, operation, and maintenance of the database and its applications Both the first and third answers above are correct. ANSWER DOWNLOAD EXAMIANS APP
Managing Multiuser Databases The lost update problem is when User A reads data that have been processed by a portion of a transaction from User B. True False True False ANSWER DOWNLOAD EXAMIANS APP
Managing Multiuser Databases Which of the following locks the item from change but not from read? Implicit lock Explicit lock Shared lock Exclusive lock Implicit lock Explicit lock Shared lock Exclusive lock ANSWER DOWNLOAD EXAMIANS APP
Managing Multiuser Databases A transaction in which either all of the database actions occur or none of them do is called: isolated. consistent. atomic. durable. isolated. consistent. atomic. durable. ANSWER DOWNLOAD EXAMIANS APP
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