单项选择题 You are the desktop administrator for Company, Inc. The companys network contains an intranet Webfarm, which consists of three Web servers. The Web servers are named Company1, Company2, andCompany3. Users access the Web farm by using the URL http://team.Company.com.The relevant portionof the network is configured as shown in the exhibit. Smith is a user in the company operations department. Smith uses Internet Explorer on this Windows 2000Professional computer to access files that are located on the Web farm. Smith reports that when heattempts to access a file named Schedule.xls by using the URL http://team.Company.com/ops/schedule.xls,Internet Explorer displays the following error message: “DNS error or server not found”.The network administrator informs you that the company DNS server is unavailable. However, Smith needs to access the Schedule.xls file immediately. You need to ensure that Smith can access the file byusing Internet Explorer on his computer. Which URL should you instruct Smith to use?（）

单项选择题 YouarethenetworkadministratorforCompany.Companyhasjustupgradeditsnetworkswitchesfrom10Mbpsto100Mbps.Aftertheupgrade，youfindthatthe100Windows2000Professionalcomputersonthenetworkarestillcommunicatingatonly10Mbps.CompanyusesNWLinkastheonlynetworkprotocol.Youwanttoenablethecomputerstocommunicateat100Mbps.Whatshouldyoudo？（）

多项选择题 You are the administrator of a Windows 2000 network. The network is configured as shown in the Network Diagram.  Client computers on the Sales subnet run Windows 98 and use DHCP. Client computers on theDevelopment subnet run Windows 2000 Professional and use statically assigned TCP/IP settings.Users on the Sales subnet report that they cannot communicate with users on the Development subnet. Auser who works on ComputerES3 reports that he cannot communicate with computers on the development subnet.You want all users to be able to communicate with other users on both subnets.What should you do? （）(Each correct answer presents part of the solution.)