正解:B
In the ERSPAN configuration provided, Host B is connected to Switch A and is configured as the source of the ERSPAN spanned traffic. This is indicated by the configuration on Switch A, which includes the command monitor session 48 type erspan-source, specifying that it is sending ERSPAN traffic to a destination.
The destination IP address for this traffic is set to 10.11.11.2, which corresponds to Host A's interface VLAN12 IP address. Therefore, Host A, connected to Switch B, is the traffic analyzer, receiving the spanned traffic from Host B.
References := The explanation is based on the standard ERSPAN configuration practices where the source switch is configured with a session type of 'erspan-source' and the destination switch with
'erspan-destination'. This information is typically covered in Cisco's documentation on ERSPAN configurations and the Cisco Data Center Core Technologies (DCCOR) course materials.