护理站台面、电话按键、鼠标要每日擦拭清洁消毒至少()次。配比(),浓度250mg/ly有效氯消毒剂消毒。
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隔墙的砌筑施工工序有()。
A. 弹水平线
B. 墙身放线
C. 摆砖、立皮数杆
D. 砌砖与清理
运营档案库房至少设置()名库房负责人、()名库管员和()名保安。
A. 2、2、2
B. 1、2、2
C. 1、1、2
D. 2、2、4
In Recovery Manager (RMAN), you are taking image copies of the datafiles of your production database and rolling them forward as regular intervals. You attempt to restart your database instance after a regular maintenance task, you realize that one of the data files that belongs to the USERS tablespace is damaged and you need to recover the datafile by using the image copy. You could perform the following steps to accomplish this: 1) Mount the database 2) Take the data file offline 3) Bring the data file online 4) Use the RMAN SWITCH TO command to switch the image copy 5) Apply the archived redo logs 6) Open the database 7) Use the RMAN RESTORE TO command to switch to the image copy Which two options illustrate the correct sequence of steps that you could follow?()
A. 2, 6, 4, 5, 3
B. 1, 2, 4, 5, 3, 6
C. 1, 2, 4, 6, 3
D. 1, 2, 7, 5, 3, 6