Final answer:
A Flood Guard is a firewall feature that allows administrators to set a threshold for unanswered login attempts to protect against brute force or denial-of-service attacks.
Step-by-step explanation:
The protection feature built into many firewalls that allows an administrator to tweak the tolerance for unanswered login attacks is known as a Flood Guard. This feature is designed to recognize when there is an abnormal amount of login attempts in a short period, which could indicate a brute force or denial-of-service attack. By configuring the flood guard, the administrator sets a threshold limit for unanswered login attempts, and if this limit is reached, the firewall can take actions such as temporarily blocking the IP address from which the attempts are originating to protect the network.
The protection feature built into many firewalls that allows the administrator to tweak the tolerance for unanswered login attacks is Flood guard. Flood guard is a feature that protects against network flooding attacks by limiting the number of connection requests from a single source in a given time period. This helps prevent denial-of-service attacks and protects the network from being overwhelmed.