You work as the IT professional in an international company which is named Wiikigo. You are experiencedin implementing and administering a network operating system. You are specialized in deploying servers，configuring Windows Server 2008 Terminal services and network application services， and configuring aweb services infrastructure. You perform the installation of a new server named S01 that runs WindowsServer 2008. The server has the Streaming Media Services server role installed. You install and activateall Windows Media Services control protocols. Users connect to S01 locally and remotely through afirewall. Now you receive an order from the company management. According to the company requirement， you should make sure that the protocol rollover will occur only if the users are accessing S01from the Internet. What action should you perform？（）

• A、In order to make sure of this， the Reliable Multicast Protocol should be installed on S01.
• B、In order to make sure of this， users should be enabled to access the streaming media by usingannouncements.
• C、In order to make sure of this， the Quality of Service （QoS） service should be installed on the networkadapter.
• D、In order to make sure of this， the firewall should be configured to forward incoming port 1755 traffic toS01.