Resilient networks refer to communication networks that are designed to withstand and recover from disruptions or failures, such as natural disasters, cyber-attacks, or equipment malfunction. These networks are built with redundancy, diversity, and flexibility to ensure uninterrupted communication in the face of adversity. Resilient networks often incorporate advanced technologies such as self-healing mechanisms, dynamic rerouting, and fault-tolerant protocols to ensure continuous operations and reliable connectivity. Research in this area focuses on developing innovative solutions to improve the resilience of communication networks and enhance their ability to adapt to changing environments and threats.