Network Defense Essentials (NDE) 2026 – 400 Free Practice Questions to Pass the Exam

The correct choice is C, as a reactive approach specifically focuses on responding to incidents after they have occurred. In the context of cybersecurity, particularly with attacks such as Denial of Service (DoS), this approach includes implementing security monitoring systems that can detect anomalies and alert responders to take action during or after an attack.

By utilizing metrics such as traffic analysis and behavior monitoring, the reactive approach enables organizations to quickly identify attacks and apply appropriate measures—like filtering traffic or rerouting resources—to mitigate ongoing threats. This method is crucial in a dynamic threat landscape where attacks can occur suddenly and require immediate responses to minimize damage and restore services.

Other approaches, such as preventive, deterrent, and corrective, focus on different stages of security management, primarily emphasizing either preemptive measures, discouragement of potential attacks, or resolution and recovery post-attack, rather than actively engaging during an attack scenario. Thus, the reactive approach is distinctly suited to handling and addressing attacks like DoS through immediate detection and response strategies.