COMPUTER NETWORKING

Detailed explanation-1: -Deep packet inspection (DPI): It is the actual data of the packets is checked so viruses, spam, and other harmful content can be restricted.

Detailed explanation-2: -A packet filtering is a type of firewall that applies rules to each incoming IP packet and then decides whether to forward it to the next network connection or discard the packet. This firewall is installed on the TCP/IP network.

Detailed explanation-3: -A packet filtering firewall is a networking device that examines the header information of data packets that come into a network and determines whether to deny them or forward them to the next network connection based on its configuration rules.

Detailed explanation-4: -A virtual firewall is an appliance used in a cloud-based system, both private and public. This type of firewall is used to assess and manage internet traffic over both physical and virtual networks.