Firewall is part of the Operating System. System and Firewall attributes are derived from the Operating System (the last sentence is from the despised Unwired pg48).
Yes, but it doesn't say Firewall is based on System. An OS has a System rating, but its not the only things that defines an OS. Firewall is part of the OS too. The OS has not one rating, but two. System
and Firewall together define the capability of the OS. How well it can run other programs
and how well it protects. Two different things, two different ratings, totally independent from each other. Both together form the OS.
They are as independent from each other as Response and Signal. Sure, for sending and receiving a signal you will need hardware too, but why would you limit the signal rating by response. Its two different things!
Not really understand why anyone would install more powerful hardware for firewall than for the system.
You don't. Sorry, but i can only assume, that you don't know what a firewall in RL does. Every broadband router has a firewall inside. You don't need an extra OS for it, you almost don't even need hardware for it, because its only a tiny, tiny packet filter. That's why it can't be limited by either System or Response rating.
Since the operating systems of peripheral nodes are far more limited and focused, their System rating is not restricted by the Response rating, as is the case with standard nodes
For peripheral nodes it says, that the System is not limited by Response. They did not write that Firewall is not limited by Response.
In the table next to it, you see examples, where the Firewall
and System is greater than Response, even some Firewall greater than System.
This can only be explained in two ways:
- they have lots of printing errors in that table, which they didn't even fix in the errata
- its already taken for granted that the Firewall can be higher than System or Response, so its not needed to mention it again
All this together points obviously to the second case, that its taken for granted!
I rest my case!