a(n) firewall examines the entire conversation between client and server, not just individual packets.

A server or other device hosts a software-based firewall, also known as a host firewall. Each device that needs security must have host firewall software installed.In order to decide whether to send an IP packet to its destination or to simply block it using a specified set of rules, a packet filter firewall filters/examines the header information of each incoming and outgoing IP packet (datagram). layer of the TCP/IP reference model does a packet filtering firewall operate on Based on IP or MAC address, packet filtering can be used to provide or prohibit access to resources. Based on the port number, application filtering can either allow or prevent access. Access can be granted or denied based on URLs or keywords using URL filtering.Learn more about access here-https://brainly.com/question/1412821#SPJ4