CCNA Security Exam Cram (Exam IINS 640-553)

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Exam Prep Questions

Which of the following is the best description of a firewall? (Choose one.)

	A.	Firewalls statefully inspect reply packets to determine whether they match the expected state of a connection in the state table.
	B.	Firewalls statically inspect packets in both directions and filter on layer 3 and layer 4 information.
	C.	A firewall is a system or a group of systems that enforce an access control ...

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