A. It is a gateway firewall applied to a Tier-0 gateway that drops traffic on port 22
B. It is a distributed firewall applied to App-Services, DB-Servers and Web-Servers that rejects traffic on port 22
C. It is adistributed firewall applied to App-Services, DB-Servers and Web-Servers that drops traffic on port 22
D. It is a gateway firewall applied to a Tier-0 gateway that rejects traffic on port 22