Managing Multiuser Databases Database administration refers to a function that applies to the entire organization. False True False True 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? Consistent read Dirty read Phantom read Nonrepeatable read Consistent read Dirty read Phantom read Nonrepeatable read ANSWER DOWNLOAD EXAMIANS APP
Managing Multiuser Databases The advantage of optimistic locking is that: transactions that are best suited are those with a lot of activity. the lock never needs to be obtained. the lock is obtained only after the transaction has processed. the lock is obtained before the transaction has processed. transactions that are best suited are those with a lot of activity. the lock never needs to be obtained. the lock is obtained only after the transaction has processed. the lock is obtained before the transaction has processed. ANSWER DOWNLOAD EXAMIANS APP
Managing Multiuser Databases Which of the following refers to a cursor type where changes of any type and from any source are visible? Forward only Dynamic Keyset Static Forward only Dynamic Keyset Static 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: consistent. isolated. atomic. durable. consistent. isolated. atomic. durable. ANSWER DOWNLOAD EXAMIANS APP
Managing Multiuser Databases Which of the following locks the item from access of any type? Explicit lock Exclusive lock Shared lock Implicit lock Explicit lock Exclusive lock Shared lock Implicit lock ANSWER DOWNLOAD EXAMIANS APP
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