ocp-117

QUESTION NO: 117

Which of the following are true concerning block media recovery? (Choose all that apply.)

A. Any gap in archive logs ends the recovery.

B. If a gap in archive logs is encountered, RMAN will search forward for newer versions of the blocks that

are not corrupt.

C. Uncorrupted blocks from the flashback logs may be used to speed recovery.

D. The database can be in NOARCHIVELOG mode.

E. None of the above.

Option A is incorrect because a gap in archive logs does not automatically end the recovery.

RMAN will search forward for uncorrupted newer blocks; if RMAN finds one, it will continue with the

restore and recovery operation. RMAN will check the flashback logs for uncorrupted copies of the block

before it checks the backups.

Option D is incorrect because the database must be in ARCHIVELOG mode.

Answer: B,C

B. 如果遇到一个归档记录缺口， RMAN 将向前搜索未损坏的较新版本的块。

C. 闪回日志的未损坏块可用于加快恢复。