Firewalls operate at the:Group of answer choicesNetwork and application layerInterface between LANs and WANsIP layer of a computer networkNetwork layer

Network layer firewall works as a __________

The type of firewall that keeps track of the destination IP address of each packet that leaves the internal network is called:Group of answer choicesrouter packet filtering firewallapplication firewallstateful inspection firewallDMZ

A firewall is a component or set of components that restricts access between a protected network and other sets of networks and are often used to protect an organisation’s networks from the Internet. a. Briefly describe the operational characteristics of: • a simple packet filter; • a stateful packet filter; • an application gateway; • a circuit level gateway.

Select the firewall type in each scenario.A firewall that monitors the state of traffic on a network.A firewall that filters a packet based on the packet's destination IP address.A firewall that allows all packets to a specific IP address.A firewall that blocks all TCP packets.

What is a firewall?