Focused on maintaining business continuity for critical services, applications, and data.

Focused on maintaining business continuity for critical services, applications, and data.

• A. Resiliency Issues
• B. Open SDN
• C. Management Plane
• D. SDN Overlay

Answer: (A)

Resiliency in IT is all about keeping critical services, applications, and data available even when parts of the system fail. It emphasizes designing and operating systems with redundancy, automatic failover, robust backups, and disaster recovery plans so downtime is minimized and service levels are preserved. When a question highlights maintaining business continuity for those essential components, resiliency best captures the goal because it centers on the system’s ability to withstand disruptions, recover quickly, and continue operating with little or no interruption. The other terms describe networking or management concepts rather than the enduring availability of core services. Open SDN refers to open interfaces and control of software-defined networking, not specifically continuity. The management plane concerns how devices are configured and overseen, which is about administration rather than sustaining operations during incidents. An SDN overlay covers virtual networks on top of an existing backbone, focusing on network architecture rather than the broader continuity of critical services.

Resiliency in IT is all about keeping critical services, applications, and data available even when parts of the system fail. It emphasizes designing and operating systems with redundancy, automatic failover, robust backups, and disaster recovery plans so downtime is minimized and service levels are preserved. When a question highlights maintaining business continuity for those essential components, resiliency best captures the goal because it centers on the system’s ability to withstand disruptions, recover quickly, and continue operating with little or no interruption.

The other terms describe networking or management concepts rather than the enduring availability of core services. Open SDN refers to open interfaces and control of software-defined networking, not specifically continuity. The management plane concerns how devices are configured and overseen, which is about administration rather than sustaining operations during incidents. An SDN overlay covers virtual networks on top of an existing backbone, focusing on network architecture rather than the broader continuity of critical services.