Q132 Which three statements are true about undo segments and the use of undo by transactions in an Oracle database instance? (Choose three.)
- (A). An undo segment may be used by multiple transactions simultaneously
- (B). Undo segments can wrap around to the first extent when a transaction fills the last extend of the undo segment
- (C). Undo segments have a minimum of three extents
- (D). Undo segments can extend when a transaction fills the last extent of the undo segment
- (E). A single transaction may use multiple undo segments simultaneously
- (F). Undo segments must be stored in a BIGFILE tablespace
- (G). Undo segments must be stored in a SMALLFILE tablespace
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