You used the IMMEDIATE option to shut down your database instance. Consider the steps that  mayoccur when a database instance is started and database is opened:  1:SGA is allocated.  2:Control file is read.  3:Redo log files are opened.  4:Instance recovery is started.  5:Background processes are started.  6:Data file headers are checked for consistency.  7:Server parameter file or the initialization parameter file is read.  Which option has the correct order in which these steps occur()
A:7,1,5,2,3,6,4
B:1,5,7,2,3,6;step 4 is not required
C:7,1,5,2,3,6;step 4 is not required
D:1,2,3,5,6,4;step 7 is not required
出自:Oracle认证