Data and Database Administration A shared lock allows which of the following types of transactions to occur? Update Delete Insert Read Update Delete Insert Read ANSWER DOWNLOAD EXAMIANS APP
Data and Database Administration Poor data administration can lead to which of the following? Familiarity with existing data A single definition of the same data entity All of these Missing data elements Familiarity with existing data A single definition of the same data entity All of these Missing data elements ANSWER DOWNLOAD EXAMIANS APP
Data and Database Administration Backward recovery is used to reverse the changes made by transactions that have aborted, or terminated abnormally. True False True False ANSWER DOWNLOAD EXAMIANS APP
Data and Database Administration The transaction log includes which of the following? The after-image of a record The essential data of the record The before and after-image of a record The before-image of a record The after-image of a record The essential data of the record The before and after-image of a record The before-image of a record ANSWER DOWNLOAD EXAMIANS APP
Data and Database Administration Mirrored databases are almost always provided in high-availability systems. True False True False ANSWER DOWNLOAD EXAMIANS APP
Data and Database Administration Which of the following is the preferred way to recover a database after a system failure? Rollforward Rollback Switch to duplicate database Reprocess transactions Rollforward Rollback Switch to duplicate database Reprocess transactions ANSWER DOWNLOAD EXAMIANS APP
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