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Category: 1D0-570

Exam 1D0-570: CIW v5 Security Professional Exam

Which of the following is the most plausible explanation for this situation?

Consider the following firewall rules:
I incoming traffic:
TCP Port 25
TCP Port 139: Denied
UDP Port 137: Denied

UDP Port 138: Denied
ICMP echo request: Denied
I CMP echo reply: Denied
Outgoing traffic:
TCP Ports 1024 through 65,535 to port 80: Denied
T CP Port 80: Denied
ICMP echo request: Denied
I CMP echo reply: Denied
TCP Port 139: Denied
UDP Port 137: Denied
UDP Port 138: Denied
All company production servers reside behind the corporate firewall. However, you discover that
the Web server performance is very low. After sniffing the traffic to the Web server, you learn that
the Web server is experiencing a distributed denial-of-service attack in which millions of ping
packets are being directed at the server. Which of the following is the most plausible explanation
for this situation?


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