Data and Database Administration Queries that do full table scans should be avoided. False True False True ANSWER DOWNLOAD EXAMIANS APP
Data and Database Administration Performance analysis and tuning is which of the following? Undertaken as an ongoing part of the backup of a database Undertaken one time at the time of a DBMS installation Undertaken one time at the time of the implementation of a new application Undertaken as an ongoing part of managing a database Undertaken as an ongoing part of the backup of a database Undertaken one time at the time of a DBMS installation Undertaken one time at the time of the implementation of a new application Undertaken as an ongoing part of managing a database 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. False True False True ANSWER DOWNLOAD EXAMIANS APP
Data and Database Administration Poor data administration can lead to which of the following? All of these Familiarity with existing data Missing data elements A single definition of the same data entity All of these Familiarity with existing data Missing data elements A single definition of the same data entity ANSWER DOWNLOAD EXAMIANS APP
Data and Database Administration Data modeling and database design are key responsibilities of data and data base administration. True False True False ANSWER DOWNLOAD EXAMIANS APP
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