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address translation or address filtering

 
olivier roussille
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I cleared part I last week. I'll try not to disclose the real-world exam but I've been stuck on a question.
Everybody knows the interference between protocols and port filtering of a fire-wall. But what about address translation and address filtering. I guess I had to tick one of these two but I didn't know which one. Could someone elaborate with respect to several well-known protocols? thanks in advance
Olivier Roussille
 
Ian B Anderson
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Hello Olivier,
I'm not sure if this is what you were interested in but...
The question sounds like a firewall one. E.g. a big coporate network will not allow anyone to connect with an ip address that is not within their network. The firewall/proxies simply drop the packets as they recieve them. As you know since you've passed already firewalls can filter on port numbers, ips , well anything you want really.
Address translation, not sure what you mean here. I understand converting www.blahblah.com to the IP but I can't think of a question you might face in the SCEA that would involve that. Or it could be recieving a request and where that need to be routed too.
Can you explain more about Address Transalation?
Good luck with Part 2
Ian
 
olivier roussille
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I guess you answered just with the following sentence: "a big coporate network will not allow anyone to connect with an ip address that is not within their network"
I cannot explain more about address translation because the possible answers were just:
.
.
C) port filtering
d) address filtering
e) address translation
so the correct answers were c and d
 
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