Oracle ocp 052题库解析2

The ORCL database has CONTROL FILE AUTOBACKUP and BACKUP OPTIMIZATION enabled.  USER1.EMP is a table in tablespace TBS1 There are no existing backups of the database. Examine these commands: $ rman target / RMAN> BACKUP DATABASE RMAN>exit $sqlplus / as sysdba SQL>UPDATE USER1.EMP set SAL=5000 WHERE ENO=10;        1 row updated. SQL>COMMIT;       Commit complete. SQL>exit $rman target / RMAN> CONFIGURE EXCLUDE FOR TABLESPACE tbs1; RMAN>BACKUP INCREMENTAL LEVEL 1 DATABASE; What is the outcome? A.It takes a level 0 incremental backup of ORCL with TBS1. B.It takes a level 1 incremental backup of ORCL without TBS1. C.It takes a level 0 incremental backup of ORCL without TBS1. D.It takes a level 1 incremental backup of ORCL with TBS1. 正确答案：C 答案解析：RMAN的0级备份，相当于一个全量备份，但是RMAN全量备份不等于0级备份。1级备份必须基于0级备份实现，负责1级备份时，实际执行了0级备份。