A. 아직 백업되지 않은 현재 FRA에 없는 모든 Oracle 복구 파일이 백업됩니다.

B. 현재 FRA에서 아직 백업되지 않은 모든 비 Oracle 파일이 백업됩니다.

C. 현재 FRA에서 아직 백업되지 않은 모든 Oracle 복구 파일이 백업됩니다.

D. 현재 FRA(빠른 복구 영역)에 있는 모든 Oracle 복구 파일을 백업합니다.

E. 이 백업은 디스크나 SBT에 쓸 수 있습니다.

A. It is part of the DBMS_STATS package.

B. It always analyzes all schemas in the database.

C. It can be run only manually.

D. It is part of the DBMS_ADVISOR package.

E. It can recommend changes to improve the statistics gathering process.

F. It runs automatically every night by default.

A. P1_USER1can be created in CDB1.

B. APP1_USER1can be created in PDB1.

C. APP1_USER1can have different privileges in each Application PDB contained in APP1_ROOT.

D. APP1_USER1can be created in CDB1.

E. C##_APP_USER1can be created in CDB1.

F. C##_USER1will have the same privileges and roles granted in all PDBs in CDB1.

A. It obeys all hints.

B. It considers object statistics when generating execution plans for SQL statements.

C. It can only use SQL Plan Directives tied to the SQL statement for which a plan is being generated.

D. It considers the filters in WHERE clauses when generating execution plans for SQL statements.

E. It updates stale object statistics in the Data Dictionary.

F. It can re-optimize execution plans after previous executions detect suboptimal plans.

A. If an rman backup validate command takes roughly the same time as an actual backup, then read I/O is a likely bottleneck.

B. Data files with a high value in v$backup_async_io.short_waits are a potential performance bottleneck when asynchronous I/O is used.

C. If an rman backup validate command takes noticeably less time than an actual backup, then write I/O is a likely bottleneck.

D. Data files with a high value in v$backup_sync_io.discrete_bytes_per_second are a potential performance bottleneck when synchronous I/O is used.

E. If an rman backup validate command takes roughly the same time as an actual backup, then both read and write I/O are likely bottlenecks.