Oracle backup Type level0, Level1, incremental, differential backup ____oracle

Backup type:

A full backup contains all the used data file blocks.

A level 0 incremental backup is equivalent to a full backup marked Level 0. The cumulative Level 1 incremental backup contains only the blocks that have been modified since the last incremental 0-level backup.

The differential Level 1 incremental backup contains only the blocks that have been modified since the last incremental backup.
To apply a level1 level backup, you must have a corresponding level0 level backup;

Backup incremental level 0 database;
--level0 level Backup

Backup incremental level 1 database;
--level1 level Backup (default is differential backup)

Backup incremental level 1 cumulative database;
--level1-level Cumulative Incremental backup

Fast Incremental backups:
A block change tracking implementation that allows for faster backups by maintaining record generation redo for blocks that have changed since the last backup, by writing this record to file for automatic access when performing a backup

ALTER DATABASE enable block change tracking using file '/HOME/ORACLE/BLK_TRC_.F ';

SELECT * from V$block_change_tracking;

Alter DATABASE disable block change tracking;