Which of the following is the BEST network defense against unknown types of attacks or stealth attacks in progress?

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Topic 4, . Communication and Network Security

Which of the following is the BEST network defense against unknown types of attacks or stealth attacks in progress?
A . Intrusion Prevention Systems (IPS)
B . Intrusion Detection Systems (IDS)
C . Stateful firewalls
D . Network Behavior Analysis (NBA) tools

Answer: D