Managing Multiuser Databases A transaction in which either all of the database actions occur or none of them do is called: atomic. durable. consistent. isolated. atomic. durable. consistent. isolated. ANSWER DOWNLOAD EXAMIANS APP
Managing Multiuser Databases What is the overall responsibility of the DBA? 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 Both the first and third answers above are correct. Create and populate tables ANSWER DOWNLOAD EXAMIANS APP
Managing Multiuser Databases Which of the following locks the item from change but not from read? Implicit lock Exclusive lock Shared lock Explicit lock Implicit lock Exclusive lock Shared lock Explicit lock ANSWER DOWNLOAD EXAMIANS APP
Managing Multiuser Databases A durable transaction is one in which all committed changes are permanent. False True False True 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 Two transactions that run concurrently and generate results that are consistent with the results that would have occurred if they had run separately are referred to as serializable transactions. True False True False ANSWER DOWNLOAD EXAMIANS APP
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