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Question 188 - CISSP discussion
An external attacker has compromised an organization's network security perimeter and installed a sniffer onto an inside computer. Which of the following is the MOST effective layer of security the organization could have implemented to mitigate the attacker's ability to gain further information?
A.
Implement packet filtering on the network firewalls
B.
Require strong authentication for administrators
C.
Install Host Based Intrusion Detection Systems (HIDS)
D.
Implement logical network segmentation at the switches
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