In the network shown in the figure, the switch SWA is a two-layer switch, and the router RTA is the gateway of each PC. The following configuration is made on the router RTA:
[RTA]interface Ethernet 0/0.1
[RTA-Ethernet0/0.1]ip address 10.10.10.1 255.255.255.0
[RTA-EthernetO/0.1 ]vlan-type dotlq vid 1
[RTA-Ethernet0/0.1 Jinterface ethernet 0/0.2
[RTA-Ethernet0/0.2]ip address 20.20.20.1 255.255.255.0
[RTA-Ethernet0/0.2]vlan-type dotlq vid 2
[RTA-Ethernet0/0.2]interface ethernet 0/0.3
[RTA-Ethernet0/0.3]ip address 30.30.30.1 255.255.255.0
[RTA-Ethernet0/0.3]vlan-type dotlq vid 3
After completing the phase configuration on the switch SWA, PCA, PCB and PCC can all ping their own gateway. The following is correct about the switch SWA port Ethernet1/0/4 (choose one or more)

If you need to implement multicast data forwarding in a three-layer network, at least configure the following protocols or functions

GVRP is enabled on the switch SWA, and the Hold timer value is set to 100 centiseconds. Now you need to modify the value of other timers. The following configuration is correct

Which of the following descriptions about the IP address of the VLAN interface of the H3C Layer 3 switch is correct?

Regarding the three versions of the multicast group management protocol IGMPv1, IGMPV2, and IGMPv3, which is correct