Managing Multiuser Databases An exclusive lock locks the item from change but not from read. False True False True ANSWER DOWNLOAD EXAMIANS APP
Managing Multiuser Databases The transaction log contains a copy of every database record (or page) after it has changed. These records are called before images. False True False True ANSWER DOWNLOAD EXAMIANS APP
Managing Multiuser Databases Which of the following locks the item from access of any type? Explicit lock Implicit lock Shared lock Exclusive lock Explicit lock Implicit lock Shared lock Exclusive lock ANSWER DOWNLOAD EXAMIANS APP
Managing Multiuser Databases Which of the following occurs when one transaction reads a changed record that has not been committed to the database? Phantom read Consistent read Dirty read Nonrepeatable read Phantom read Consistent read Dirty read Nonrepeatable read 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 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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