Data and Database Administration A transaction log shows before and after images of records that have been modified by transactions. 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 before and after-image of a record The before-image of a record The essential data of the record The after-image of a record The before and after-image of a record The before-image of a record The essential data of the record ANSWER DOWNLOAD EXAMIANS APP
Data and Database Administration Data modeling and database design are key responsibilities of data and data base administration. False True False True ANSWER DOWNLOAD EXAMIANS APP
Data and Database Administration Which of the following is part of an administrative policy to secure a database? Authentication policies All of these Ensure appropriate responses rates are in external maintenance agreements Limiting particular areas within a building to only authorized people Authentication policies All of these Ensure appropriate responses rates are in external maintenance agreements Limiting particular areas within a building to only authorized people ANSWER DOWNLOAD EXAMIANS APP
Data and Database Administration Which of the following is the preferred way to recover a database after a transaction in progress terminates abnormally? Reprocess transactions Rollback Switch to duplicate database Rollforward Reprocess transactions Rollback Switch to duplicate database Rollforward 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
EXAMIANS