【单选题】You issue the following command: RMAN>CONFIGURE BACKUP OPTIMIZATION ON; What is the result of this command on your backups?()
A.
An incremental backup strategy will be used automatically.
B.
Read-only datafiles will not be backed up as long as backups of those files already exist and those backups meet established retention criteria.
C.
RMAN will configure itself for maximum performance at the cost of CPU.
D.
RMAN will configure itself for minimal OS/CPU impact at the cost of time to back up the database.
E.
RMAN will automatically compress backups.
【判断题】恒温动物又称温血动物,能在较大温度范围内,保持相对恒定体温(35~42°C)。
【单选题】单选题-糖皮质激素治疗暴发性流脑必须合用足量有效的抗生素是因为
【单选题】有一宗土地,第一年的纯收益为100万,资本化率为5%,若(1)以后个年的纯收益在第一年的基础上逐年递增1%;(2)以后个年年纯收益逐年增加1万元。这两种情况下该宗土地的无限年期价格应分别是()万元。
【单选题】After creating backups of critical system and user data, which of the following is the BEST location to store the backups?()
A.
In the supply closet so anyone can access them if needed
B.
Near the server for easy access to restore files
C.
Locked in a cabinet in the IT Manager’s office
D.
At a secure off-site storage facility
【判断题】本征半导体和杂质半导体内部,都有可能发生本征吸收。
【单选题】糖皮质激素治疗暴发性流脑必须合用足量有效的抗生素是因为( )