You have an Exchange Server 2010 organization. 
Your network is separated from the Internet by a firewall. 
You need to identify the ports that must be opened on the firewall to allow clients from the Internet to usethe following connections methods：.Outlook Anywhere
.Outlook Web App （OWA）.Exchange ActiveSync
.IMAP4 over Secure Sockets Layer （SSL）
Which TCP ports should you identify？（）

You are the enterprise administrator for an Exchange Server 2010 organization. All users run Microsoft Office Outlook 2010. 
You are designing a sharing solution for your organization and a partner organization. The partner organization also uses Exchange Server 2010. 
You need to recommend a strategy for sharing information with the partner organization to meet thefollowing requirements：
.Provide cross-organizational access to user contacts 
.Provide cross-organizational access to free\busy information 
What should you recommend？（）