During the establishment of the TCP connection as shown in the figure, the Y part of SYN should be filled with ________.

On the MSR router, you can see the following display in the routing table:
Destination/Mask Proto Pre Cost NextHop Interface
127.0.0.0/8 Direct 0 0 127.0.0.1 InLoop0
127.0.0.1/32 Direct 0 0 127.0.0.1 InLoop0
192.168.96.0/19 Direct 0 0 192.168.120.153 S6/0
Then the correct description of the route with the destination address of 192.168.96.0/19 is ______.

Compared with traditional LAN, which of the following advantages does VLAN have? (multiple choice)

As shown in the figure, the router RTA is connected with PCA and PCB.

If you need to enable ARP proxy on RTA so that RTA can forward ARP packets between PCs, which of the following configurations is correct? (multiple choice)

If the IP address of a host is 130.25.3.135 and the subnet mask is 255.255.255.192, then the network address of the subnet where the host is located is ______.