A facility operates older production machines that cannot be replaced or upgraded quickly. Which measure is the best approach to limit unwanted activity between machines while maintaining throughput?
Places older production equipment into a dedicated zone
Implements load balancers in front of each machine for traffic optimization
Regularly updates the controller software on the machines to address vulnerabilities
Applies uniform firewall settings across systems hosting production equipment
Separating these machines in a specific zone preserves functionality and reduces attack paths. Updating control software regularly is good practice but does not isolate the older machines. Using uniform firewall settings across all hosts can cause blanket rules that leave some gaps. Load balancers are designed to optimize traffic distribution rather than block direct interaction between endpoints.
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