20160101 ocp 053 120-150

121.tape streaming is not happening while performing rman tape backup .on investigation,

you find that it is not because of the incremental backup or the empty file backup and that rman is sending data blocks to the tape drive fast enough

what could be a solution to make tape streaming happen during the backup?

c.configure the channel to increase the capacity with the rate parameter 

124.examine the create diskgroup command used to create a disk group:

sql>create diskgroup misc external redundancy disk'orcl';fra3'name misc,'orcl':fra4' name misc;

in which situation would you use this method of disk group creation?

d.when using hardware mirroring or raid

EXTERNAL REDUNDANCY 即是asm不会有故障组，需要自己提供别的荣誉方式，如硬盘或者raid荣誉

127.examine the trans table's storage information

after a massive delete operation ,you executed the folloowing statement to shrink the trans table

sql>alter table trans shrink space cascade 

which statement desribe the outcome of the command?

b.the table and all related objects are compacted and the position of the high-water mark(HWM)

for the table is adjusted

使用shrink space字句可以收缩段中的空间。如果指定了cascade,则收缩行为级联到所有支持收缩操作的从属段，但实体化视图，lob索引和iot映射表例外

130.itablespace point-in-time recovery 

使用rman自动表空间时间点恢复可将oracle db中的一个或多个表零结案快速恢复到以前的某个时间，而不会影响数据库中其他表空间的对象的状态

131.which three functions are perfored by the sql tuning advisor?

其中

b.recommanding the optimization of materialized viees

d.recommendating bitmap ,function-based,and b-tree indexes

是基于sql access advisor的

134.which three statements are true about persistent configuration?

a.a user cannot set privilages on the persistent lightweight jobs

是的，用户无法设置对这些作业的权限，他们将从父作业模板中继承其权限

c.it is possible to create fully self-contained p[ersistent lighweight jobs

跟a 是同样的道理

必须使用模板而不能创建完全属于自己的轻量型作业

135.which three true about windows?

a.only one window can be open at any given time yes

b.consumer groups are associated with windows 

用户组合窗口绑定？ hehe

137.while monitoring the space usage in your database that is in archivelog mode you observed that the flash recovery area does not have enough free space to accommodate any more files and youy do not have necessary permissons to add more space to it

b.the log swith hangs occur for transations until free space is available in the flash recovery area

c.the oracle database server deletes a file that is on the obsolete file list to make free space inb the falsh recovery area

FRA空间满的情况下，并且你没有权限去扩充空间。此时数据库为归档模式，一般情况，归档日志是放在fra中，如果fra空间满，则在日志切换发生归档的时候，该事物会haNG住，此外，数据库服务器会根据备份保留策略来删除过期的备份来释放更多空间

139.which three statements must be true before transporting a tablespace from a database on one platform to a database 

on anothter olatform?

a.both source and target database must be the same character set 

b.both source and target database must have the same endian format

e.all read-only and offlien datafiles that belong to the tablespace to be transported must be platformn aeare

144.the database is running in the archivelog mode,it has three redo log groupos with one member each.one of the 

redo log groups has become corrupted .you have issued the followiubng command during the recovery of a damaged redo log gfile 

alter database clewar unarchivelog logfile grouo3;

what action should you du

b.you should make a backup of the database

清楚了日志组3，以前的备份就失效了，所以应该重新备份数据库

148.you work with a newly created database.presently ,there is no application load on the database instance. you want to created a baseline for tunning the application,so you decide to collect recommendations that can be inplemented to improce application performance

what action

d.run the sal access advisor with a hypothetical workload