Data and Database Administration Which of the following could cause data to be unavailable? Planned database maintenance activities Data becoming lost or inaccurate The database server All of these Planned database maintenance activities Data becoming lost or inaccurate The database server All of these ANSWER DOWNLOAD EXAMIANS APP
Data and Database Administration A disaster recovery plan does not need to include the shipment of database backups to other sites. True False True False ANSWER DOWNLOAD EXAMIANS APP
Data and Database Administration Concurrency control is important for which of the following reasons? 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 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 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? Rollback Rollforward Reprocess transactions Switch to duplicate database Rollback Rollforward Reprocess transactions Switch to duplicate database ANSWER DOWNLOAD EXAMIANS APP
Data and Database Administration Backward recovery is which of the following? Switching to an existing copy of the database Where the after-images are applied to the database Where the before-images are applied to the database Where the after-images and before-images are applied to the database Switching to an existing copy of the database Where the after-images are applied to the database Where the before-images are applied to the database Where the after-images and before-images are applied to the database ANSWER DOWNLOAD EXAMIANS APP
Data and Database Administration Locking may cause which of the following problems? Versioning Deadlock Erroneous updates All of these Versioning Deadlock Erroneous updates All of these ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS