多项选择题
Which of the following commands provides similar information about the current configuration ofactive local Ethernet adapters? (Select TWO)（）
A. traceroute B. ipconfig C. ifconfig D. route E. hostname
单项选择题 Which of the following protocols is used to disable switch ports automatically to prevent switchingloops?（）
单项选择题 Which of the following uses copper wiring?（）
单项选择题 Which of the following is a secure method of remote access via command line?（）
