ocp認(rèn)證052考題解析：1Z0-V8.02-第86題，完整題庫請(qǐng)點(diǎn)擊這里聯(lián)系老師咨詢了解

86. View the Exhibit to examine the output for the CROSSCHECK BACKUP command.

Which statement is true about the output of the command?

A.The backup piece is expired as the new backup is available.

B.The backup piece is expired because the operating-system file was not found.

C.The backup piece is expired because the retention period for the backup has expired.

D.The backup piece is expired because the backup set to which it belongs is not complete.

Answer: B

答案解析：

Crosscheck (交叉檢驗(yàn))：RMAN 可自動(dòng)刪除過時(shí)備份，但用戶也可使用操作系統(tǒng)命令刪除這些備份。如果備份不是使用RMAN 刪除的，那么在目錄與目錄實(shí)際內(nèi)容之間執(zhí)行交叉檢驗(yàn)之前，目錄并不知道備份是否缺失。