●Basically,a(71)is a standalone process or a set of integrated processes that runs on a router or server to control the flow of(72)application traffic(73)through it.Typically,firewalls are(74)on the entry point to a public network such as the Internet.They could be considered traffic cops.The firewall's(75)is to ensure that all communication between an organization's network and the Internet conform. to the organization's security policies.

(71)A.router B.client C.firewall D.switch

(72)A.network B.networked C.net D.networky

(73)A.pass B.passed C.passing D.passes

(74)A.placed B.place C.put D.get

(75)A.mole B.pole C.role D.rule