What is the primary reason for using diagnostic tools in a network?

The primary reason for using diagnostic tools in a network is to identify sources of issues quickly. These tools are designed to monitor network performance, detect faults or anomalies, and provide insight into the status of various network components. By efficiently pinpointing problems, technicians can address issues before they escalate, thus reducing downtime and enhancing the overall reliability of the network. Quick identification of issues allows for timely interventions, which is essential for maintaining optimal network performance and ensuring that users experience minimal disruption.

While improving cable strength, reducing overall installation costs, or increasing the number of connected devices may be relevant in certain contexts, they do not directly relate to the core function of diagnostic tools. These tools are primarily focused on troubleshooting and maintaining network health, which revolves around identifying and resolving issues swiftly.