单项选择题 Which of the following describes what the number two represents in l00Base2 cabling?（）

单项选择题 An administrator has completed the installation of a new WLAN. Which of the following configuration management documents needs to be updated?（）

单项选择题 A client wants to improve the wireless coverage on the third floor of their house. The wireless router is located in the basement and there is no easy way to run a cable to the third floor. Which of the following devices should be installed to extend the wireless coverage to cover the entire third floor without running cables?（）