日期:2014-05-16  浏览次数:20495 次

11gOCP 1z0-052 :2013-09-13 FAST_START_MTTR_TARGET.........................................A69

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题库答案 BC好象自相矛盾。


答案A不正确,这两参数与SGA顾问器无关。

答案B:正确,当fast_start_mttr_target 默认为0(即没有手工设0)说明是开启了自动检查点,这里mttr顾问器就被禁用了。

答案C不正确,这里的自动检查点是开启的。


如果说显式的设置alter system set FAST_START_MTTR_TARGET=0就是关闭自动调节。默认是开启的自动检查点!!!!

sys@OCM> show parameter mttr

 

NAME                                TYPE        VALUE

------------------------------------ -----------------------------------------

fast_start_mttr_target              integer     0

 

隐藏参数“_disable_selftune_checkpointing”(Disable self-tune checkpointing )=                   FALSE 

    

sys@OCM> show parameter dump

 

NAME                                TYPE        VALUE

------------------------------------ -----------------------------------------

background_core_dump                string      partial

background_dump_dest                string     /u01/app/oracle/diag/rdbms/ocm

                                                /ocm/trace

core_dump_dest                      string     /u01/app/oracle/diag/rdbms/ocm

                                                /ocm/cdump

max_dump_file_size                  string      unlimited

shadow_core_dump                    string      partial

user_dump_dest                      string     /u01/app/oracle/diag/rdbms/ocm

                                                /ocm/trace

 

[root@mydb ~]