If you want the current configuration to continue to take effect after the system restarts, you should use the _______ command to save the current configuration to the configuration file before restarting the device. (Please write full order)

The IP address 112.1.1.1 corresponds to the network address of the natural classification network segment.

After enabling DHCP on the router RTA, you need to set the address range of the address pool to 192.168.1.0/24, and the default gateway address assigned to the host is 192.168.1.254.
Which of the following configurations can meet these requirements? (multiple choice)

Which of the following descriptions of circuit switching and packet switching is correct is ______. (Multiple choice)

The two MSR routers are interconnected through their respective WAN interface S1/0, and RIPv2 is running on the two routers to dynamically complete the remote routing of each other. Now for security reasons, it is necessary to add verification on the RIP, so which of the following Is the RIP configuration correct?