上下电检查主要包括：上电前检查、上电步骤、下电步骤等。
A、对
B、错
F820设备中5号槽位不能支持的单板有（）
AEI8E
BV08B
CEPUA
DMS8E
在网管上进行TrAP告警服务器配置时，SNMP版本、SNMP团体名和告警格式分别为（）、（）、SNMPTrAP。
When you are allowing RMAN to backup your archived redo log files，how does RMAN know which archived redo logs to back up from your archive log destination？（）
A、RMAN keeps a list of archive logs in a text file.
B、The DBA must manually tell RMAN which archive logs to backup.
C、RMAN has access to target control file and/or catalog information.
D、RMAN looks at the ARCHIVE_LOG_DEST parameter of your target database and backs up all archive logs found.
C200能支持最大ONU数是（）。
A、160个
B、320个
C、640个
D、1800个