Oracle OCP 1Z0 053 Q121(Autotask Background Process)
121.Which three statements are true regarding the functioning of the Autotask Background Process
(ABP)? (Choose three.)
A. It creates jobs without considering the priorities associated with them.
B. It translates tasks into jobs for execution by the scheduler.
C. It determines the list of jobs that must be created for each maintenance window.
D. It is spawned by the MMON background process at the start of the maintenance window.
E. It maintains a repository in the SYSTEM tablespace to store the history of the execution of all tasks.
Answer: BCD
參考:http://blog.csdn.net/dbaxiaosa/article/details/11608187
(ABP)? (Choose three.)
A. It creates jobs without considering the priorities associated with them.
B. It translates tasks into jobs for execution by the scheduler.
C. It determines the list of jobs that must be created for each maintenance window.
D. It is spawned by the MMON background process at the start of the maintenance window.
E. It maintains a repository in the SYSTEM tablespace to store the history of the execution of all tasks.
Answer: BCD
參考:http://blog.csdn.net/dbaxiaosa/article/details/11608187
ABP相當於自動任務與排程程式之間的中介,其主要作用是將自動任務轉換成Autotask作業,供排程程式執行。同樣重要的是,ABP還維護所有任務執行的歷史記錄。ABP將其專用資料檔案庫儲存在sysaux表空間中,您可以通過DBA_AUTOTASK_TASK 查案該資料檔案庫。
ABP是在啟動維護視窗時,由MMON 啟動的,所有例項只需要一個ABP。MMON程式將監視ABP,並在必要時重啟ABP.
ABP可以確定為每項維護任務建立的作業列表,此列表按以下優先順序排序:緊急、高階、中級。在每個優先順序組中,作業是按執行的首選順序排列的。
ABP按照以下方式建立作業:先建立所有緊急優先順序的作業,然後建立高優先順序的作業,最後建立所有中優先順序的作業。
ABP將作業分配到多個排程程式作業類。這些作業類將作業對映到基於優先順序的使用者組。
注意:使用Oracle DB 11g時,不存在與特定任務永久關聯的作業。因此,不能使用DBMS_SCHEDULER過程來控制自動任務的行為,請改而使用DBMS_AUTO_TASK_ADMIN過程
來自 “ ITPUB部落格 ” ,連結:http://blog.itpub.net/8520577/viewspace-2074454/,如需轉載,請註明出處,否則將追究法律責任。
相關文章
- Oracle OCP 1Z0 053 Q389(Recovery Writer Process)Oracle
- Oracle OCP 1Z0-053 Q57(ASM ASMB(Background process))OracleASM
- Oracle OCP 1Z0 053 Q650Oracle
- Oracle OCP 1Z0 053 Q324Oracle
- Oracle OCP 1Z0 053 Q27Oracle
- Oracle OCP 1Z0 053 Q49Oracle
- Oracle OCP 1Z0 053 Q10Oracle
- Oracle OCP 1Z0 053 Q685Oracle
- Oracle OCP 1Z0 053 Q454Oracle
- Oracle OCP 1Z0 053 Q500Oracle
- Oracle OCP 1Z0 053 Q444(Scheduler)Oracle
- Oracle OCP 1Z0 053 Q440(Scheduler)Oracle
- Oracle OCP 1Z0 053 Q601Oracle
- Oracle OCP 1Z0 053 Q472(Locale)Oracle
- Oracle OCP 1Z0 053 Q525(ASM)OracleASM
- Oracle OCP 1Z0 053 Q292(NFS)OracleNFS
- Oracle OCP 1Z0 053 Q538(ASM)OracleASM
- Oracle OCP 1Z0 053 Q416Oracle
- Oracle OCP 1Z0 053 Q648(Flashback)Oracle
- Oracle OCP 1Z0 053 Q520Oracle
- Oracle OCP 1Z0 053 Q607Oracle
- Oracle OCP 1Z0 053 Q500(Rman)Oracle
- Oracle OCP 1Z0 053 Q707Oracle
- Oracle OCP 1Z0 053 Q28(INCREMENTAL)OracleREM
- Oracle OCP 1Z0 053 Q332Oracle
- Oracle OCP 1Z0 053 Q269Oracle
- Oracle OCP 1Z0 053 Q83(Flashback Database)OracleDatabase
- Oracle OCP 1Z0 053 Q344(V$SESSION)OracleSession
- Oracle OCP 1Z0 053 Q558(V$BACKUP)Oracle
- Oracle OCP 1Z0 053 Q427(Transportable Tablespace)Oracle
- Oracle OCP 1Z0 053 Q182(RMAN)Oracle
- Oracle OCP 1Z0 053 Q428(transport database)OracleDatabase
- Oracle OCP 1Z0 053 Q458(Globalization NLSRTL)Oracle
- Oracle OCP 1Z0 053 Q465(NLS Parameters)Oracle
- Oracle OCP 1Z0 053 Q21(RMAN Duplicate)Oracle
- Oracle OCP 1Z0 053 Q600(RMAN BACKUP)Oracle
- Oracle OCP 1Z0 053 Q114Oracle
- Oracle OCP 1Z0 053 Q700(RMAN Duplicate)Oracle