What tool is commonly used for diagnosing network issues?

The tool that is commonly used for diagnosing network issues is the network analyzer. This device allows technicians to capture and analyze data packets as they travel across the network. By doing so, it helps identify problems such as bandwidth issues, latency, dropped packets, and potential security threats.

Network analyzers can provide detailed insights into network traffic, allowing for real-time monitoring and troubleshooting. They help technicians pinpoint specific areas of concern by visualizing network behavior and performance metrics, leading to more effective and informed decision-making when resolving issues.

In contrast, while a multimeter is useful for testing electrical signals and verifying voltage and continuity in cables, it does not provide the specific network data needed for diagnosing connectivity issues. A fiber splicer is essential for connecting fiber optic cables, but it does not analyze network performance or troubleshoot issues. A bandwidth limiter controls the amount of bandwidth a connection can use, rather than diagnosing problems within the network itself. Overall, the network analyzer is the most comprehensive tool for diagnosing network-related issues effectively.