What type of monitoring focuses on performance issues and bandwidth usage?

Network traffic monitoring is specifically designed to analyze and track data transfers across a network, making it the most relevant choice when focusing on performance issues and bandwidth usage. This type of monitoring provides insights into how much bandwidth is being utilized, identifies peaks in data transfer, and helps detect any possible bottlenecks affecting network performance. By capturing data packets as they travel through the network, this monitoring enables network administrators to assess the overall health of the network and ensures that bandwidth is being used efficiently.

Other forms of monitoring, while important in their own right, have different focuses. Real-time monitoring can encompass various aspects of network and system performance but doesn't specifically target bandwidth and performance issues like network traffic monitoring does. Security monitoring is primarily concerned with identifying and preventing security threats, rather than analyzing bandwidth. Application monitoring focuses on the performance and functionality of specific applications rather than the overall network performance or bandwidth usage. Thus, network traffic monitoring uniquely fits the context of managing and enhancing network efficiency.