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 A shared lock allows which of the following types of transactions to occur? Update Read Delete Insert Update Read Delete Insert 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 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 Which of the following is part of an administrative policy to secure a database? Ensure appropriate responses rates are in external maintenance agreements All of these Limiting particular areas within a building to only authorized people Authentication policies Ensure appropriate responses rates are in external maintenance agreements All of these Limiting particular areas within a building to only authorized people Authentication policies ANSWER DOWNLOAD EXAMIANS APP
Data and Database Administration Locking may cause which of the following problems? Versioning All of these Erroneous updates Deadlock Versioning All of these Erroneous updates Deadlock ANSWER DOWNLOAD EXAMIANS APP
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