Your network contains two Exchange Server 2010 Edge Transport servers. 
The network also contains five Hub Transport servers in two Active Directory sites. All e-mail sent to the network is received by the Edge Transport servers. You plan to configure anti-spam filtering. 
You need to ensure that the anti-spam filtering configurations are applied to both Edge Transport servers. The solution must use a minimum amount of administrative effort. 
What should you do？（）

Your network contains an Exchange Server 2010 server. 
You need to plan a mailbox sharing solution for the organization to meets the following requirements：.Ensure that assistants can read and modify the e-mail messages of their managers
.Ensure that assistants can impersonate their managers when they send e-mail messages 
What should you include in the plan？（）