OCP-1Z0-053-V13.02-586题

586.Consider the following command:

Backup database plus archivelog delete input;

How many backup sets would be created by this command if the following were true:

Control-file auto backups were enabled.

The size of backup sets was not restricted.

One channel was allocated.

A. 1

B. 2

C. 3

D. 4

E. 5

Answer: D

答案解析：

RMAN> show all;

RMAN configuration parameters for database with db_unique_name TESTDB are:

CONFIGURE RETENTION POLICY TO REDUNDANCY 1; # default

CONFIGURE BACKUP OPTIMIZATION OFF; # default

CONFIGURE DEFAULT DEVICE TYPE TO DISK; # default

CONFIGURE CONTROLFILE AUTOBACKUP ON;

CONFIGURE CONTROLFILE AUTOBACKUP FORMAT FOR DEVICE TYPE DISK TO '%F'; # default

CONFIGURE DEVICE TYPE DISK PARALLELISM 1 BACKUP TYPE TO BACKUPSET; # default

CONFIGURE DATAFILE BACKUP COPIES FOR DEVICE TYPE DISK TO 1; # default

CONFIGURE ARCHIVELOG BACKUP COPIES FOR DEVICE TYPE DISK TO 1; # default

CONFIGURE MAXSETSIZE TO UNLIMITED; # default

CONFIGURE ENCRYPTION FOR DATABASE OFF; # default

CONFIGURE ENCRYPTION ALGORITHM 'AES128'; # default

CONFIGURE COMPRESSION ALGORITHM 'BASIC' AS OF RELEASE 'DEFAULT' OPTIMIZE FOR LOAD TRUE ; # default

CONFIGURE ARCHIVELOG DELETION POLICY TO NONE; # default

CONFIGURE SNAPSHOT CONTROLFILE NAME TO '/u01/app/oracle/product/11.2.0/dbhome_1/dbs/snapcf_testdb.f'; # default

RMAN> Backup database plus archivelog delete input;

Starting backup at 19-DEC-13

current log archived

using channel ORA_DISK_1

channel ORA_DISK_1: starting archived log backup set

channel ORA_DISK_1: specifying archived log(s) in backup set

input archived log thread=1 sequence=10 RECID=5 STAMP=834597174

input archived log thread=1 sequence=11 RECID=6 STAMP=834597417

channel ORA_DISK_1: starting piece 1 at 19-DEC-13

channel ORA_DISK_1: finished piece 1 at 19-DEC-13

piece handle=/u01/app/oracle/fast_recovery_area/TESTDB/backupset/2013_12_19/o1_mf_annnn_TAG20131219T163657_9c5d1bn3_.bkp tag=TAG20131219T163657 comment=NONE

channel ORA_DISK_1: backup set complete, elapsed time: 00:00:03

channel ORA_DISK_1: deleting archived log(s)

archived log file name=/u01/app/oracle/fast_recovery_area/TESTDB/archivelog/2013_12_19/o1_mf_1_10_9c5csl13_.arc RECID=5 STAMP=834597174

archived log file name=/u01/app/oracle/fast_recovery_area/TESTDB/archivelog/2013_12_19/o1_mf_1_11_9c5d19cn_.arc RECID=6 STAMP=834597417

Finished backup at 19-DEC-13

Starting backup at 19-DEC-13

using channel ORA_DISK_1

channel ORA_DISK_1: starting full datafile backup set

channel ORA_DISK_1: specifying datafile(s) in backup set

input datafile file number=00001 name=/u01/app/oracle/oradata/testdb/system01.dbf

input datafile file number=00002 name=/u01/app/oracle/oradata/testdb/sysaux01.dbf

input datafile file number=00005 name=/u01/app/oracle/oradata/testdb/example01.dbf

input datafile file number=00003 name=/u01/app/oracle/oradata/testdb/undotbs01.dbf

input datafile file number=00004 name=/u01/app/oracle/oradata/testdb/users01.dbf

channel ORA_DISK_1: starting piece 1 at 19-DEC-13

channel ORA_DISK_1: finished piece 1 at 19-DEC-13

piece handle=/u01/app/oracle/fast_recovery_area/TESTDB/backupset/2013_12_19/o1_mf_nnndf_TAG20131219T163703_9c5d1j8c_.bkp tag=TAG20131219T163703 comment=NONE

channel ORA_DISK_1: backup set complete, elapsed time: 00:02:05

Finished backup at 19-DEC-13

Starting backup at 19-DEC-13

current log archived

using channel ORA_DISK_1

channel ORA_DISK_1: starting archived log backup set

channel ORA_DISK_1: specifying archived log(s) in backup set

input archived log thread=1 sequence=12 RECID=7 STAMP=834597550

channel ORA_DISK_1: starting piece 1 at 19-DEC-13

channel ORA_DISK_1: finished piece 1 at 19-DEC-13

piece handle=/u01/app/oracle/fast_recovery_area/TESTDB/backupset/2013_12_19/o1_mf_annnn_TAG20131219T163911_9c5d5hlk_.bkp tag=TAG20131219T163911 comment=NONE

channel ORA_DISK_1: backup set complete, elapsed time: 00:00:01

channel ORA_DISK_1: deleting archived log(s)

archived log file name=/u01/app/oracle/fast_recovery_area/TESTDB/archivelog/2013_12_19/o1_mf_1_12_9c5d5g7r_.arc RECID=7 STAMP=834597550

Finished backup at 19-DEC-13

Starting Control File and SPFILE Autobackup at 19-DEC-13

piece handle=/u01/app/oracle/fast_recovery_area/TESTDB/autobackup/2013_12_19/o1_mf_s_834597553_9c5d5lz1_.bkp comment=NONE

Finished Control File and SPFILE Autobackup at 19-DEC-13

RMAN> list backup;

List of Backup Sets

===================

BS Key  Size       Device Type Elapsed Time Completion Time

------- ---------- ----------- ------------ ---------------

5       32.68M     DISK        00:00:02     19-DEC-13      

        BP Key: 5   Status: AVAILABLE  Compressed: NO  Tag: TAG20131219T163657

        Piece Name: /u01/app/oracle/fast_recovery_area/TESTDB/backupset/2013_12_19/o1_mf_annnn_TAG20131219T163657_9c5d1bn3_.bkp

  List of Archived Logs in backup set 5

  Thrd Seq     Low SCN    Low Time  Next SCN   Next Time

  ---- ------- ---------- --------- ---------- ---------

  1    10      736975     19-DEC-13 759987     19-DEC-13

  1    11      759987     19-DEC-13 760624     19-DEC-13

BS Key  Type LV Size       Device Type Elapsed Time Completion Time

------- ---- -- ---------- ----------- ------------ ---------------

6       Full    1.17G      DISK        00:01:59     19-DEC-13      

        BP Key: 6   Status: AVAILABLE  Compressed: NO  Tag: TAG20131219T163703

        Piece Name: /u01/app/oracle/fast_recovery_area/TESTDB/backupset/2013_12_19/o1_mf_nnndf_TAG20131219T163703_9c5d1j8c_.bkp

  List of Datafiles in backup set 6

  File LV Type Ckp SCN    Ckp Time  Name

  ---- -- ---- ---------- --------- ----

  1       Full 760633     19-DEC-13 /u01/app/oracle/oradata/testdb/system01.dbf

  2       Full 760633     19-DEC-13 /u01/app/oracle/oradata/testdb/sysaux01.dbf

  3       Full 760633     19-DEC-13 /u01/app/oracle/oradata/testdb/undotbs01.dbf

  4       Full 760633     19-DEC-13 /u01/app/oracle/oradata/testdb/users01.dbf

  5       Full 760633     19-DEC-13 /u01/app/oracle/oradata/testdb/example01.dbf

BS Key  Size       Device Type Elapsed Time Completion Time

------- ---------- ----------- ------------ ---------------

7       19.00K     DISK        00:00:00     19-DEC-13      

        BP Key: 7   Status: AVAILABLE  Compressed: NO  Tag: TAG20131219T163911

        Piece Name: /u01/app/oracle/fast_recovery_area/TESTDB/backupset/2013_12_19/o1_mf_annnn_TAG20131219T163911_9c5d5hlk_.bkp

  List of Archived Logs in backup set 7

  Thrd Seq     Low SCN    Low Time  Next SCN   Next Time

  ---- ------- ---------- --------- ---------- ---------

  1    12      760624     19-DEC-13 760709     19-DEC-13

BS Key  Type LV Size       Device Type Elapsed Time Completion Time

------- ---- -- ---------- ----------- ------------ ---------------

8       Full    9.36M      DISK        00:00:02     19-DEC-13      

        BP Key: 8   Status: AVAILABLE  Compressed: NO  Tag: TAG20131219T163913

        Piece Name: /u01/app/oracle/fast_recovery_area/TESTDB/autobackup/2013_12_19/o1_mf_s_834597553_9c5d5lz1_.bkp

  SPFILE Included: Modification time: 19-DEC-13

  SPFILE db_unique_name: TESTDB

  Control File Included: Ckp SCN: 760721       Ckp time: 19-DEC-13