Network Traffic Monitoring and Analysis is the process of capturing, inspecting, and interpreting data flowing across a network to gain insight into its performance, health, and security. By examining traffic patterns, packet details, and flow data, administrators can troubleshoot connectivity issues, identify performance bottlenecks, optimize bandwidth utilization, and plan for future capacity. Critically, this process is also essential for security, enabling the detection of anomalies, malicious activities, and policy violations, thereby providing the comprehensive visibility required to maintain a robust and efficient network infrastructure.