多项选择题 Which of the following is the correct arrangement of the data pairs in a T568B wire pattern?（）

单项选择题 A user is trying to use Remote Desktop to connect to another computer on the LAN. Theconnection fails. The technician opens up a command prompt and types the following: “telnetcomputernamE. 3389” and also gets the same error message. Which of the following is the MOSTlikely cause of this error, assuming that the OS firewall has been disabled?（）

单项选择题 A customer has asked for the ability to operate dual digital monitors. Which of the following is the BEST solution for accomplishing this?（）