What does a network analyzer primarily do?

A network analyzer primarily monitors data packets in a network to assess performance, identify issues, and analyze traffic flow. By capturing and analyzing network packets, the tool provides insights into the kinds of data being transferred, communication patterns, and potential bottlenecks or problems within the network. This capability is crucial for troubleshooting network issues and ensuring optimal performance.

Monitoring network traffic allows technicians to see what types of data are being sent and received, including protocols in use, packet sizes, and error rates. This detailed visibility helps in diagnosing network quality and security issues, such as unauthorized access or excessive latency, which can impact the overall efficiency and reliability of network services.

Other options, while related to networking, focus on different functions that a network analyzer does not perform. Storing data efficiently pertains more to data management systems, encrypting data transmissions involves securing information during transit, and configuring network devices relates to setup and management tasks rather than monitoring.