What is meant by network resilience?

Network resilience refers to the ability of a network to bounce back and recover from disruptions, such as system failures, natural disasters, or cyber attacks, while still maintaining its core functionality. This quality is crucial for ensuring continuous operation and service availability, enabling users to access necessary resources without significant interruption.

The importance of network resilience lies in its direct impact on user experience and business operations. A resilient network is designed to withstand various types of challenges and automatically reroute traffic or switch to backup systems when primary components fail, thus minimizing downtime and service loss. Additionally, resilience often includes robust disaster recovery protocols and redundancy measures, which bolster a network's capacity to handle unexpected incidents while preserving data integrity and service reliability.

Contextually, the other options focus on aspects that, while important for network management, do not directly relate to the definition of resilience. For instance, network expansion, device support capacity, and user access management all pertain to different dimensions of network design and functionality, but they do not encapsulate the concept of resilience in the face of adversity.