单项选择题 The Device Manager in Windows XP shows that an incompatible device driver is installed. Which of the following BEST describes the icon that is displaying next to that device?（）

单项选择题 A client is having trouble connecting to the Internet. The client is using a static IP address and is able to connect to other devices on the network via IP address only. Which of the following is MOST likely the problem?（）

单项选择题 A computer that has dynamic IP addressing is not receiving an IP address. Which of the following is MOST likely the problem?（）