In the switching network as shown in the figure, set VLAN10 to Isolate-user-vlan VLAN2 and VLAN3 to the Secondary VLAN of VLAN 10 on the switch SWA; create VLAN2? VLAN20 on the switch SWB, and set VLAN20 to Isolate-user-vlan, The Secondary VLA with VLAN4 being VLAN20 can be judged after setting the IP address of each device as shown in the figure

In the switching network as shown in the figure, set VLAN10 to Isolate-user-vlan VLAN2 and VLAN3 to the Secondary VLAN of VLAN 10 on the switch SWA; create VLAN2? VLAN20 on the switch SWB, and set VLAN20 to Isolate-user-vlan, The Secondary VLA with VLAN4 being VLAN20 can be judged after setting the IP address of each device as shown in the figure

A . PCA can communicate with PCB
B . PCA can communicate with PCC
C . PCA can communicate with SWA
D . PCA can communicate with SWB
E . SWA can communicate with SWB

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Answer: BDE