(ISC)2 Certified in Cybersecurity Practice Exam

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If a single firewall is supplemented with a second standby firewall for redundancy, what type of control is being leveraged?

Discretionary Control
Administrative Control
High Availability
Preventative Control

The correct answer is: High Availability

In this scenario, leveraging a second standby firewall for redundancy falls under the category of High Availability. High Availability refers to the system's ability to remain operational and accessible even in the event of a failure of one of its components. By incorporating a standby firewall, an organization ensures that if the primary firewall fails for any reason, the standby can take over immediately, thereby minimizing downtime and maintaining continuity of operations. This approach is crucial in environments where uptime is essential, as it directly enhances the overall reliability of the network security infrastructure. Maintaining high availability is a proactive strategy to counteract potential failures, ensuring that security measures remain in place even in adverse situations. This is vital for safeguarding sensitive data and maintaining trust with users relying on the network's services.