XHTML makes browsers render documents faster than HTML

An interactive game uses ports 26000 to 26050 for connecting to other players. A chat client for this game uses port 56. What security feature would you configure on the firewall so that whenever ports 26000 to 26050 are being used, port 56 is also allowed through the firewall for the same duration of time as the higher numbered ports?

A) Firewall hardening B) Port triggering C) Proxy D) Hidden share

To save time would it be possible to store intermediate values in registers on the datapath such as the Program Counter or Instruction Register? Explain why or why not.

What will be an ideal response?