What is a network appliance that checks the state of a packet to determine whether the packet is legitimate?
A) Layer 2 switch
B) LAN controller
C) load balancer
D) firewall

Question

Quizplus · Accepted Answer

A firewall is a network appliance that inspects packets and can check their state to determine if they are legitimate, often using stateful inspection to track active connections.

What Is a Network Appliance That Checks the State of a Packet