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Which three statements are true concerning the multitenant architecture?

Each pluggable database (PDB) has its own set of background processes.

A PDB can have a private temp tablespace.

PDBs can share the sysaux tablespace.

Log switches occur only at the multitenant container database (CDB) level.

Different PDBs can have different default block sizes.

PDBs share a common system tablespace.

Instance recovery is always performed at the CDB level.

* A PDB would have its SYSTEM, SYSAUX, TEMP tablespaces. It can also contains other user created
tablespaces in it.
* There is one default temporary tablespace for the entire CDB. However, you can create additional temporary
tablespaces in individual PDBs.
* There is a single redo log and a single control file for an entire CDB
* A log switch is the point at which the database stops writing to one redo log file and begins writing to another.
Normally, a log switch occurs when the current redo log file is completely filled and writing must continue to the
next redo log file.G: instance recovery
The automatic application of redo log records to uncommitted data blocks when an database instance is
restarted after a failure.
Not A:
* There is one set of background processes shared by the root and all PDBs. –
* High consolidation density. The many pluggable databases in a single container database share its memory
and background processes, letting you operate many more pluggable databases on a particular platform than
you can single databases that use the old architecture.
Not C: There is a separate SYSAUX tablespace for the root and for each PDB.
Not F: There is a separate SYSTEM tablespace for the root and for each PDB. –

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