backup is the default type of incremental backup that backs up all changed blocks since the last level 0 or level 1 incremental backup

differential Correct

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backups involve copying the files that constitute the database. These backups are also referred to a...
backout options: NOCASCADE Back out only the specified transaction, if possible.
backout options: NONCONFLICTONLY Back out changes to nonconflicting rows of the specified transactio...
backout options: CASCADE Back out all transactions and their dependent transactions.
backout options: NOCASCADEFORCE Back out the specified transactions, ignoring dependent transactions...
Backing up the control file for a database running in ARCHIVELOG mode produces the same end result a...