Implementing Cisco Network Security (IINS, legacy) — Question 106

Which option is the most effective placement of an IPS device within the infrastructure?

Answer options

• A. Promiscuously, before the internet router and the firewall
• B. Promiscuously, after the Internet router and before the firewall
• C. Inline, behind the internet router and firewall

Correct answer:

Explanation

The correct answer is C because placing the IPS inline behind the internet router and firewall allows it to actively inspect and manage traffic that has already been filtered by these devices. Options A and B are less effective since they do not allow the IPS to directly analyze the traffic that passes through the firewall, which is essential for detecting and preventing intrusions.