COMPUTER ETHICS AND SECURITY
FIREWALLS AND ANTIVIRUS SOFTWARE
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
packet filtering
|
|
|
stateful packet inspection
|
|
|
NAT filtering
|
|
|
Application-level gateway
|
Detailed explanation-1: -The packet filtering firewall filters IP packets based on source and destination IP address, and source and destination port.
Detailed explanation-2: -Application Level gateway proxy firewall This system inspects traffic at the Application layer of the TCP/IP stack. It works as a separate host with its own IP address, which intercepts the traffic request received by the network.
Detailed explanation-3: -Packet filtering firewall However, these firewalls don’t route packets; rather they compare each packet received to a set of established criteria, such as the allowed IP addresses, packet type, port number and other aspects of the packet protocol headers.
Detailed explanation-4: -There are three types of firewalls based on how you decide to deploy them: hardware, software, and cloud-based firewalls.