At what layer of the OSI model do firewalls operate?
A)Transport
B)Data link
C)Network
D)Application

Question

Quizplus · Accepted Answer

Firewalls operate at the network layer of the OSI model, often referred to as layer 3. They analyze incoming and outgoing traffic and based on predetermined rules, allow or deny access to the network. This layer is where IP addresses are used to route data and make decisions about where data is sent. Firewalls use this information to determine which traffic is allowed through and which traffic should be blocked. Therefore, the correct answer is option C) Network.

At What Layer of the OSI Model Do Firewalls Operate