You are managing an Oracle Database 11g database. You want to take the backup of MULT_DATA, a big filetablespace of size 100 TB on tape drive, but you have tapedrives of only 10 GB each.Which method would accomplish the task quickly and efficiently?()
A. parallel image copy backup
B. backup with MAXPIECESIZE configured for the channel
C. parallel backup with MAXPIECESIZE configured for the channel
D. intrafile parallel backu
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率的计算公式为()
A. 某现象实际发生数/可能发生某现象的观察单位总数×K
B. p±1.96×Sp
C. 某一构成部分的个体数/事物各构成部分个体数的总和×100%
D. p±2.58×Sp
E. p±2.33×S
网络地址转换是一种安全保护技术。()
A. 正确
B. 错误
除氧器等压力容器,如出厂技术资料齐全、压力容器使用登记及时、技术登录簿登录内容完整、经电管局或省(市)电力局办理使用登记批准手续的,其安全状况等级可评为()级。
A. 1
B. 2
C. 3
D. 4