When implementing a Next Generation Firewall (NGFW), what should a network security administrator consider to ensure effective security?

Deploying the Next Generation Firewall (NGFW) in inline mode is a vital consideration for ensuring effective security. In this mode, the NGFW is placed directly in the path of the network traffic, allowing it to actively inspect and control the traffic flows in real time. This capability enables the NGFW to enforce security policies, detect threats, and block malicious activities as they occur, rather than merely monitoring traffic without intervention. Inline deployment is essential for actively preventing attacks and can significantly enhance the overall security posture of the network.

In contrast, passive mode does not provide the same level of protection, as it only monitors traffic without the ability to take action against threats. Deploying the NGFW solely at the perimeter can also limit its effectiveness since threats can occur within the internal network as well. Lastly, minimal configuration could lead to an inadequate security setup, as NGFWs require proper customization and fine-tuning to effectively manage and respond to the unique security challenges faced by an organization. Thus, inline deployment ensures that the NGFW functions optimally to protect the network.