单项选择题
Which of the following commands can be used to verify the gateway IP address on a localcomputer?（）
A. net use B. telnet C. ping D. ipconfig
单项选择题 Which of the following occurs during POST?（）
单项选择题 Which of the following is the MAXIMUM cable length for 802.3 Ethernet?（）
单项选择题 Which of the following connectors is commonly used on a shielded twisted pair cable?（）
