[多选] Which of the following are benefits of VLANs?（）

饱和蒸汽的热力管道按规定应涂色为（）色作为标志。 黄。 蓝。 红。 All client computers in your company run Windows 7 Enterprise. You are planning to deploy a custom application that runs only on Windows XP to all users. You install Windows XP Mode on each host computer and install the application in the Windows XP guest virtual machine s (VM s ). You verify that the application runs in the guest VM s . An a pplication shortcut does not appear on the Windows 7 host computers . You need to ensure that the application can be launched directly from the Windows 7 host computers . What should you do in the guest VM s ? （） Repair the application.。 Use Programs and Features in the Control Panel to change the application.。 Copy the application shortcut to the Start menu for All Users.。 Assign the Full Control permission to the application shortcut to the Everyone group.。 建设工程中的招标，在合同订立程序上称为承诺。 You have an Exchange organization that contains Exchange 2000 Server Service Pack 3 （SP3）， Exchange Server 2003 Service Pack 2 （SP2）， and Exchange Server 2007 Service Pack 1 （SP1） servers. You need to transition the organization to Exchange Server 2010.  What should you do first？（） Remove all Exchange Server 2007 SP1 servers from the organization.。 Remove all Exchange 2000 Server and all Exchange Server 2003 servers from the organization.。 Remove all Exchange 2000 Server servers from the organization，and then upgrade all Exchange server 2007 servers to SP2.。 Remove all Exchange Server 2003 servers from the organization，and then upgrade all Exchange server 2007 servers to SP2.。 怎么都行 Which of the following are benefits of VLANs?（）