Data and Database Administration Performance analysis and tuning is which of the following? Undertaken one time at the time of a DBMS installation 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 the implementation of a new application Undertaken one time at the time of a DBMS installation 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 the implementation of a new application ANSWER DOWNLOAD EXAMIANS APP
Data and Database Administration The restore/rerun technique involves reprocessing the day's transactions up to the point of failure. False True False True 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 If both data and database administration exist in an organization, the database administrator is responsible for which of the following? All of these Database design Data modeling Metadata All of these Database design Data modeling Metadata ANSWER DOWNLOAD EXAMIANS APP
Data and Database Administration Concurrency control is important for which of the following reasons? To ensure data integrity while reading data occurs to the database in a single-user environment To ensure data integrity while reading data occurs to the database in a multiuser environment To ensure data integrity when updates occur to the database in a single-user environment To ensure data integrity when updates occur to the database in a multiuser environment To ensure data integrity while reading data occurs to the database in a single-user environment To ensure data integrity while reading data occurs to the database in a multiuser environment To ensure data integrity when updates occur to the database in a single-user environment To ensure data integrity when updates occur to the database in a multiuser environment ANSWER DOWNLOAD EXAMIANS APP
Data and Database Administration Which of the following is the preferred way to recover a database after a system failure? Rollback Reprocess transactions Switch to duplicate database Rollforward Rollback Reprocess transactions Switch to duplicate database Rollforward ANSWER DOWNLOAD EXAMIANS APP
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