Which three attributes of the LOG_ARCHIVE_DEST_n initialization parameter control the data availability mode of a Data Guard standby database? ()
A. SYNC or ASYNC to identify the network transmission mode.
B. LGWR or ARCH to identify the primary database process responsible for sending redo information to the standby.
C. AFFIRM or NOAFFIRM to control whether log archiving disk write operations are to be performed synchronously or asynchronously.
D. PROTECTED or UNPROTECTED to control the degree of divergence and data loss at the standby database.
查看答案
美国社会学家()曾经在20世纪50年代中期尝试用提高工作满意度的方法来提高员工的工作绩效,研究发现两者之间没有显著的相关性。
A. 夏兰希克
B. 梅耶
C. 贝克尔
D. 默德
钻孔时,冷却润滑的目的应以润滑为主。
A. 正确
B. 错误