单项选择题
A. The antivirus software is blocking the incoming connection.
B. The ISP is blocking Remote Desktop at their end.
C. The RDP connection has been configured to use a non-standard port.
D. The telnet service has not been installed.
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?（）
多项选择题 Which of the following would a user MOST need for a home theater PC?（）
多项选择题 A coworker has reported that someone has engaged in prohibited activity. The supervisor hasasked the technician to quarantine the PC until police arrive. Which of the following should the technician do?（）