Which protocol information may be LEAST used by the firewall to filter packets?
A) IP (Internet protocol)
B) TCP (Transport control protocol)
C) UDP (User datagram protocol)
D) ICMP (Internet control message protocol)
E) ARP (Address resolution protocol)

Question

Quizplus · Accepted Answer

ARP is not typically used by firewalls to filter packets as it is a protocol used for resolving network layer addresses into link layer addresses. Firewalls typically filter based on IP, TCP, UDP, and ICMP protocols as these are higher-level protocols that include important information for packet filtering.

Which Protocol Information May Be LEAST Used by the Firewall