单项选择题
A.Use the Device Manager to enable the USB manager root hub.
B.Use the Device Manager to enable the USB host controller in the current hardware profile.
C.Contact the hardware manufacturer to obtain the upgrade for the Plug and Play BIOS.
D.Turn off the computer plug in the ISDN terminal host adapter and restart the computer.
单项选择题 You are the administrator of a small server based network. While installing Windows 2000 Professional on your computer, you configure the network adapter card for each computer to use TCP/IP and assign static IP setting information. During installation the setup detects and installs the 10/100 MBPS UTP only network adepter card on computers 6 & 8 and 10 MBPS/UTP combination adapter card on the other 7 computers. You accept the default settings for the network adapter card and finish installing the network adapter card. All computers are connected to 10/100 switch that has category 5 UTP cabling. After installation you find that computer 6 and 8 can communicate with each other. You want all 9 computers on your network to be able to communicate with each other. What should you do?（）
单项选择题 YourcompanyhasjustupgradeditsCATAGORY5Ethernetnetworkfrom10Mbpsto100Mbps.Aftertheupgrade，the20Windows2000Professionalcomputersinthemarketingdepartmentcannolongerconnecttothenetwork.Theremaining80Windows2000computersinthecompanycanconnect，however.YourcompanyusesNWLinkastheonlynetworkprotocol.Youneedtoconnectthecomputersinthemarketingdepartmenttothenetwork.Whatmustyoudo？（）
单项选择题 You upgrade 6 MPS compliant computers from Windows NT Workstation 4.0 to Windows 2000 Professional computer. Each computer has two 550 MHz processors. The computers are used for high-resolution graphics applications that require exceptional performance. After the upgrade users complain that the processing time for graphic applications is much slower than before. What should you do?（）