单项选择题 Wich command can you use to manually assign a static IPV6 address to a router interface?（）

单项选择题 In order to allow the establishment of a Telnet session with a router, which set of commands must be configured（）。

单项选择题 If an Ethernet port on a router was assigned an IP address of 172.1.1.1/20，what is the maximum number of host sallowed on this subnet？（）