Which three statements are correct about temporary tables? (Choose three.)

Oracle allows indexes and views to be defined on global temporary tables - index data is also session-specific and stored in the temporary tablespace alongside the table data.

Only the DDL structure of a global temporary table can be exported using Data Pump or exp - the transient session data cannot be exported since it does not persist after the session or transaction ends.

The data rows inserted into a global temporary table are stored in temp segments allocated from the session's assigned temporary tablespace.

Data inserted into a global temporary table is visible only within the inserting session - other sessions see the table as empty because each session has its own private data segment.

Because each session's temporary table data is completely private and invisible to other sessions, Oracle does not need to acquire DML locks on the data, avoiding lock contention entirely.