单项选择题 Howmanyyearsofexperiencedoyouhaveinstalling，configuring，and/oradministeringWindowsXPProfessional？（）

多项选择题 You are a help desk technician for your company. All users have Windows XP Professional computers. A user named Richard reports that he cannot access www.southridgevideo.com, an Internet Web site, by using Internet Explorer. Whenever Richard types http://www.southridgevideo.com into the Internet Explorer address bar, he receives the following error message: “Your security settings prohibit the display of unsigned ActiveX Controls.” According to company policy, users should download unsigned ActiveX controls only from Internet Web sites that have been approved by the company’s information security department. You verify that www.southridgevideo.com is listed as an approved Web site. On Richard’s computer, you also verify that Internet Explorer is configured with the default settings. You need to ensure that Richard can access www.southridgevideo.com without receiving an error message. You also want to comply with company policy. You need to configure Richard’s computer. First, you open the Security properties for Internet Explorer on Richard’s computer.  Which two actions should you perform next?（）

单项选择题 You are the administrator of 10 Windows XP Professional computers for your company. The computers are members of a Windows 2000 domain. Because the computers are used in a public area in the cafeteria, you audit all security events on the computers. A user named Marc reports that he was using one of the Windows XP Professional computers when the computer suddenly shut down with a STOP error. When the computer restarted, Marc attempted to log on by using the same user name and password that he used before. Marc received the following error message: "Your account is configured to prevent you from using this computer. Please try another computer." Marc states that he did not do anything to cause the STOP error to occur. You want to ensure that Marc can use this computer. What should you do?（）