Which two are true about creating RMAN backups for an Oracle container database? (Choose two.)
Which two are true about creating RMAN backups for an Oracle container database? (Choose two.)
The BACKUP DATABASE command will create a pluggable database (PDB) backup when RMAN is connected to a PDB, making B correct. Additionally, the BACKUP PLUGGABLE DATABASE command can be used to back up CDB$ROOT, making E correct. Tablespaces from different PDBs with identical names do not have to be backed up by connecting RMAN separately to each PDB, contradicting option A. Therefore, the two correct statements are B and E.
E is correct tested: backup pluggable database "cdb$root". the quotes due to the $ symbol. it backups only the root container files (no pdb datafiles). tested CD: both incorrect Tested b: correct A is not correct due to the "must". you can connect to cdb and distinguish between tbs with same name in different pdbs with qualifying RMAN> BACKUP TABLESPACE pdb1:system, pdb1:sysaux, pdb1:users, pdb2:system;
Agree with B and E
correct answers are b,e (d is false because "plus archive log" cannot be utilized when connected to a pdb)
Reference: https://docs.oracle.com/en/database/oracle/oracle-database/19/bradv/backing-up-database.html#GUID-655DC5F5-FF8D-4A73-B67D-F5AAE20CA382
correct A,B
A is wrong because you can connect to a CDB to perform the tablespace backup https://oracle-base.com/articles/12c/multitenant-rman-backup-recovery-cdb-and-pdb-12cr1#tablespace-and-datafile-backups
B is CORRECT, no doubts here as I see. D is NOT correct: Starting backup at 20-MAY-21 skipping archived logs when connected to a PDB backup cancelled because there are no files to backup Finished backup at 20-MAY-21 E is CORRECT: RMAN> RUN { allocate channel ch1 type disk; BACKUP as COMPRESSED BACKUPSET INCREMENTAL LEVEL 0 pluggable database "CDB$ROOT" FORMAT '/u01/oracle/BACKUPS/%d_%T_%U.DB'; } 2> 3> 4> 5> 6> 7> allocated channel: ch1 channel ch1: SID=36 device type=DISK Starting backup at 20-MAY-21 ... piece handle=/u01/oracle/BACKUPS/CDB01_20210520_04vvbhh2_1_1.DB tag=TAG20210520T192730 comment=NONE channel ch1: backup set complete, elapsed time: 00:00:25 Finished backup at 20-MAY-21
B AND E
correct A,B
BE A - This statement is incorrect. RMAN can back up tablespaces from multiple PDBs in a single operation when connected to the root container. It distinguishes tablespaces with the same name that belong to different PDBs.
A is false because I can BACKUP TABLESPACE T12CPDB1:SYSTEM, SYSAUX; also I can't backup SPFILE from app cdb or PDB
B E correct
BE Correct
I think B and D rman target='sys@pdb2' backup database plus archivelog; No any issues. E is wrong rman target=/ BACKUP PLUGGABLE DATABASE error message
BD https://docs.oracle.com/en/database/oracle/oracle-database/19/bradv/backing-up-database.html#GUID-B416FCDB-1EA1-48F8-8162-F9181A75B6BB To backup root: RMAN> BACKUP DATABASE ROOT;
Recheck and D is false. So BE are correct.
I thinnk B D