GSLC · Question #72
Mark works as a Network Administrator for NetTech Inc. The company has a Windows Server 2008 domain based network. The network contains four Windows Server 2008 member servers with different roles…
The correct answer is D. Enable HTTP Streaming. When a firewall restricts traffic to ports 80 and 443, enabling HTTP Streaming on the Windows Streaming Media Services server allows media to be delivered over HTTP on port 80, which is already permitted through the firewall.
Question
Mark works as a Network Administrator for NetTech Inc. The company has a Windows Server 2008 domain based network. The network contains four Windows Server 2008 member servers with different roles and 120 Windows Vista client computers. Mark has implemented a Streaming Media Services server on the network. Users complain that they are unable to view the contents when using their Windows Media Players. Mark investigates and finds that the firewall only allows ports 80 and 443 for traffic. Mark wants to ensure that the users can view the contents. What will Mark to do to accomplish the task?
Options
- AConfigure firewall to allow port 110
- BRe-install Windows Media player on the users' computers
- CConfigure firewall to allow port 25
- DEnable HTTP Streaming
How the community answered
(67 responses)- A3% (2)
- B13% (9)
- C6% (4)
- D78% (52)
Why each option
When a firewall restricts traffic to ports 80 and 443, enabling HTTP Streaming on the Windows Streaming Media Services server allows media to be delivered over HTTP on port 80, which is already permitted through the firewall.
Port 110 is assigned to the POP3 email retrieval protocol and has no relationship to streaming media delivery or Windows Media Player connectivity.
Reinstalling Windows Media Player on client computers addresses software installation issues but cannot resolve a server-side firewall port restriction blocking the media stream.
Port 25 is assigned to the SMTP email sending protocol and is entirely unrelated to streaming media services or Windows Media Player.
Windows Streaming Media Services defaults to the MMS (Microsoft Media Services) protocol on dedicated ports that are not 80 or 443, so those streams are blocked by the existing firewall policy. Enabling HTTP Streaming reconfigures the media server to encapsulate and deliver media content within standard HTTP traffic on port 80, which the firewall already allows. This requires no firewall rule changes and immediately allows Windows Media Player clients to connect and stream content successfully.
Concept tested: HTTP Streaming to traverse restrictive firewall on port 80
Source: https://learn.microsoft.com/en-us/previous-versions/windows/it-pro/windows-server-2008-R2-and-2008/cc754952(v=ws.10)
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