Ddos/dos and firewall question

Norton Security | Norton Internet Security
1

Does norton 2012(nis 2012) firewall stop ddos or dos? Also how good is nortons firewall compared to windows firewall or a routers firewall?

2

Does norton 2012(nis 2012) firewall stop ddos or dos? Also how good is nortons firewall compared to windows firewall or a routers firewall?