Tools and test instruments are indispensable for professionals working in networking, telecommunications, and various other fields. They play a crucial role in maintaining, diagnosing, and optimizing passive components and systems, ensuring reliable and efficient operation. The accurate measurements, analysis, and troubleshooting provided by these tools contribute to the overall functionality and longevity of electronic circuits and networks. This is important to do accurate diagnosis, Quality Assurance, Efficient Troubleshooting and Network Optimization