Data and Database Administration Backward recovery is used to reverse the changes made by transactions that have aborted, or terminated abnormally. False True False True ANSWER DOWNLOAD EXAMIANS APP
Data and Database Administration With concurrent processing involving updates, a database with concurrency control will be compromised due to interference between users. False True False True ANSWER DOWNLOAD EXAMIANS APP
Data and Database Administration Queries that do full table scans should be avoided. True False True False ANSWER DOWNLOAD EXAMIANS APP
Data and Database Administration If both data and database administration exist in an organization, the database administrator is responsible for which of the following? All of these Data modeling Database design Metadata All of these Data modeling Database design Metadata ANSWER DOWNLOAD EXAMIANS APP
Data and Database Administration Which of the following is the preferred way to recover a database after a system failure? Switch to duplicate database Reprocess transactions Rollforward Rollback Switch to duplicate database Reprocess transactions Rollforward Rollback ANSWER DOWNLOAD EXAMIANS APP
Data and Database Administration Mirrored databases are almost always provided in high-availability systems. False True False True ANSWER DOWNLOAD EXAMIANS APP
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