What is the function of a network analyzer in communications?

The function of a network analyzer in communications is focused on monitoring and analyzing network performance. This tool provides valuable insights into the health and efficiency of a network by measuring various parameters, such as bandwidth usage, latency, packet loss, and error rates. By capturing and interpreting traffic data, a network analyzer helps network administrators diagnose issues, optimize performance, and plan for future needs.

In the context of network management, the ability to monitor real-time data and analyze trends over time is crucial for maintaining operational integrity and ensuring that the network meets its required performance standards. This analytical capability is essential for troubleshooting and improving network functionality.

While designing new networks, encrypting communication, or expanding network reach are important aspects of network management, they are not the primary function of a network analyzer. Design tools focus on architecture and planning, encryption deals with security protocols, and expansion often involves hardware and configuration changes. Thus, the network analyzer’s critical role in performance assessment clearly distinguishes it as the correct answer.