____ is the most important layer 3 security protocol.
A) IPSec
B) ARP
C) DNS
D) NAT

Question

Quizplus · Accepted Answer

IPSec (Internet Protocol Security) is the most important layer 3 security protocol as it provides end-to-end security for IP packets, including confidentiality, integrity, and authentication. ARP (Address Resolution Protocol) is a layer 2 protocol used to map a network address (such as an IP address) to a physical address (such as a MAC address). DNS (Domain Name System) is a protocol used for resolving domain names to IP addresses. NAT (Network Address Translation) is a technique used to remap IP addresses in a packet header while they are in transit across a traffic routing device. While all of these protocols are important for network security, IPSec stands out as the most critical layer 3 security protocol.

____ Is the Most Important Layer 3 Security Protocol