单项选择题 A SONET network typically uses which of the following transmission media?（）

单项选择题 A workstation is having connectivity issues when being added to the domain. Which of the following commands would allow the administrator to see the DNS and WINS servers that are currently configured for the workstation?（）

单项选择题 Which of the following network appliances can BEST be described as allowing multiple servers toshare requests for a website through the same public IP address?（）