Networking tool kit I recommend (affiliate) https://amzn.to/353udHn. This is an animated video explaining the tools that are used in networking. Such as a wire stripper, wire crimper, multimeter, time domain reflectometer, optical time domain reflectometer, loopback adapter, cable tester, punch down tool, and tone generator. I am a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.