单项选择题 You are the administrator of ExamSheet.nets network.  ExamSheet upgrades its network to 100 Mbps. You remove the old network adapter and install a new 10/100 Mbps network adapter into a Windows 2000 Professional computer. You configure the TCP/IP protocol settings so that IP and DNS addresses are obtained automatically. When you restart the computer you cannot access the network. When you attempt toPINGaddress 127.0.0.1 you receive the following error message: "Request timed out."  You want this computer to communicate on the network. What should you do?（）

多项选择题 You are the network administrator for ExamSheet.  You have implemented the Hisecws.inf security template on all the Windows 2000 Professional client computers in your network. A user has received a driver and utility software for an internal SCSI controller in his computer. The SCSI controller is not currently on the Hardware Compatibility List (HCL). He uses the manufacturer provided CD to install the driver and the utility. He restarts the computer and reports that the internal SCSI controller is not working correctly. You discover that the driver is not installed correctly. You want to install the SCSI driver without permanently reducing security on the client computer.  What should you do?（）

单项选择题 You are the network administrator for ExamSheet.net. Your computer has Windows 2000 Professional installed. You install an a new video card. When  you restart the computer you receive the following message: **** Stop: 0x000000B4 - The video driver failed to initialize."  The computer will not start in safe mode.  You want your computer to start properly.  What should you do?（）