单项选择题
A.traceroute address
B.tracert address
C.ssh address
D.telnet address
单项选择题 Which command reveals the last method used to power cycle a router?（）
多项选择题 Before installing a new, upgraded version of the IOS, what should be checked on the router, and which command should be used to gather this information? （）
多项选择题 Refer to the graphic. A static route to the 10.5.6.0/24 network is to be configured on the HFD router. Which commands will accomplish this? （）