Managing Multiuser Databases The size of a lock is called: implicit lock shared lock lock granularity exclusive lock implicit lock shared lock lock granularity exclusive lock ANSWER DOWNLOAD EXAMIANS APP
Managing Multiuser Databases When two transactions are being processed against the database at the same time they are termed concurrent transactions. False True False True ANSWER DOWNLOAD EXAMIANS APP
Managing Multiuser Databases Which of the following locks the item from access of any type? Shared lock Implicit lock Explicit lock Exclusive lock Shared lock Implicit lock Explicit lock Exclusive lock 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. True False True False ANSWER DOWNLOAD EXAMIANS APP
Managing Multiuser Databases A transaction for which all committed changes are permanent is called: durable. isolated. consistent. atomic. durable. isolated. consistent. atomic. 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: durable. atomic. isolated. consistent. durable. atomic. isolated. consistent. ANSWER DOWNLOAD EXAMIANS APP
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