Examine the following output when backup commands are running in server sessions:
What could have helped you to correlate server sessions with channels?
A. Implement RMAN multiplexing
B. Set the DEBUG ON in the RMAN script
C. Specify the command ID in the RMAN script
D. Use a tag with the RMAN BACKUP command
答案：（C）
解析：
《Database Backup and Recovery User's Guide》 23.2.2.2.2
使用SET COMMAND ID命令设置自己的命令ID而不是使用默认产生的命令ID('rman%'),
后面查询时CLIENT_INFO=设置的命令ID