Which feature must be disabled to prevent man-in-the-middle attacks during sensor installation?

The feature that should be disabled to prevent man-in-the-middle attacks during sensor installation is deep packet inspection. Deep packet inspection involves analyzing the content of data packets traveling across a network in great detail. While this is beneficial for identifying malicious data or threats, it can also introduce vulnerabilities if not properly configured.

During sensor installation, if deep packet inspection is enabled, it may allow interception of the communication between the sensor and the management console, thereby jeopardizing the integrity of the installation process. By disabling deep packet inspection, you minimize the risk of a man-in-the-middle attacker being able to inspect and modify the data packets, ensuring a secure and unaltered installation of the sensor.

Other options, while related to network security, do not specifically target the concerns associated with man-in-the-middle attacks in the context of sensor installation. Packet filtering, firewall settings, and VPN connections serve different purposes in network security and might not directly affect the installation process in the same way that deep packet inspection does.