单项选择题 Mike, a technician, is replacing a wireless router on an existing small office home office (SOHO) network. The SSID, WPA and DHCP information has been correctly added. Which of the following must also be addressed?（）

单项选择题 A technician installed a new wireless access point on an existing small office home office (SOHO) network with a selective security option enabled. All wireless computers connect to the new network except one computer that cannot connect to the wireless network. Which of the following is the cause?（）

单项选择题 Which of the following files are required to start Windows XP boot process?（）