Managing Multiuser Databases Which of the following disallows both dirty reads and nonrepeatable reads, but allows phantom reads? Repeatable read Read uncommitted Read committed Serializable Repeatable read Read uncommitted Read committed Serializable ANSWER DOWNLOAD EXAMIANS APP
Managing Multiuser Databases An ACID transaction is one that is atomic, consistent isolated, and durable. False True False True ANSWER DOWNLOAD EXAMIANS APP
Managing Multiuser Databases Which of the following locks the item from access of any type? Implicit lock Explicit lock Shared lock Exclusive lock Implicit lock Explicit lock Shared lock Exclusive lock 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. 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? Phantom read Nonrepeatable read Consistent read Dirty read Phantom read Nonrepeatable read Consistent read Dirty read ANSWER DOWNLOAD EXAMIANS APP
Managing Multiuser Databases The overall responsibility of the DBA is to facilitate the development and use of the database. True False True False ANSWER DOWNLOAD EXAMIANS APP
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