Posted by: Pdfprep
Post Date: October 29, 2020
A network technician is concerned that an attacker is attempting to penetrate the network, and wants to set a rule on the firewall to prevent the attacker from learning which IP addresses are valid on the network.
Which of the following protocols needs to be denied?
A . TCP
B . SMTP
C . ICMP
D . ARP
Answer: C
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