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多选题Which two statements regarding compressed backups in Recovery Manager （RMAN） are true？（）ABackup compression is disabled by default.BBackup compression can be used with both backup sets and image copies.CBackup compression cannot be enabled using the CO
题目
Backup compression is disabled by default.
Backup compression can be used with both backup sets and image copies.
Backup compression cannot be enabled using the CONFIGURE command.
Backup compression works only if the COMPATIBILITY parameter is set to 9.0.0.0 or higher.
Backup compression applies to only backup sets.
Backup compression applies to only image copies.
相似问题和答案
第1题：
A. All the related indexes and views are automatically dropped
B. The flashback drop feature can recover only the table structure
C. Only the related indexes are dropped whereas views are invalidated
D. The flashback drop feature can recover both the table structure and its data
第2题：
Weekly backups of the system are done on Sundays， and daily backups are done the rest of the week. Which of following backup methods were used if the system crashes on Friday and only requires two backup sets to recover the system？（）
- A、 Incremental and snapshot
- B、 Full and differential
- C、 Full and incremental
- D、 Differential and incremental
正确答案:B
第3题：
A. All the related indexes and views are automatically dropped
B. The flashback drop feature can recover only the table structure
C. Only the related indexes are dropped whereas views are invalidated
D. The flashback drop feature can recover both the table structure and its data
第4题：
Which two statements are true about the duplexing of the backups taken by RMAN? （）(Choose two.)
- A、It's only supported for the backups performed on the tape
- B、It is not supported for backup operations that produce image copies
- C、Duplex backups need a parallelism for the device to be equal to number of copies
- D、Duplex backups can be performed to either disk or tape, but cannot be performed on tape and disk simultaneously
正确答案:B,D
第5题：
The RECYCLEBIN parameter is set to ON for your database. You drop a table, PRODUCTS, from the SCOTT schema. Which two statements are true regarding the outcome of this action? （）(Choose two)
- A、All the related indexes and views are automatically dropped
- B、The flashback drop feature can recover only the table structure
- C、Only the related indexes are dropped whereas views are invalidated
- D、The flashback drop feature can recover both the table structure and its data
正确答案:C,D
第6题：
A. Tunnels are initiated by the LAC
B. Tunnels are initiated by the LNS
C. By default, subscriber authentication occurs on the LNS
D. By default, subscriber authentication occurs on the LAC
第7题：
Which two statements are true regarding L2TP? （）(Choose two.)
- A、Tunnels are initiated by the LAC
- B、Tunnels are initiated by the LNS
- C、By default, subscriber authentication occurs on the LNS
- D、By default, subscriber authentication occurs on the LAC
正确答案:A,C
第8题：
A.Binary backups are usually faster than text backups
B.Binary backups are usually slower than text backups
C.Text backups are human-readable while binary backups are not
D.Binary backups are not portable across different operating systems
第9题：
Which two statements are true regarding the database in ARCHIVELOG mode？（）
- A、You have to shut down the database to perform the backups.
- B、Archiving information is written to the data files and redo log files.
- C、You can perform complete database backups without closing the database.
- D、Online redo log files have to be multiplexed before putting the database in ARCHIVELOG mode.
- E、All the previous database backups become invalid after you configure the database to ARCHIVELOG mode.
正确答案:C,E
第10题：
Which two statements are true about the duplexing of the backups taken by RMAN？（）
- A、 It’s only supported for the backups performed on the tape
- B、 It is not supported for backup operations that produce image copies
- C、 Duplex backups need a parallelism for the device to be equal to number of copies
- D、 Duplex backups can be performed to either disk or tape， but cannot be performed on tape and disk simultaneously
正确答案:B,D