Ground Zero of Networking: Mastering OSI's Physical Layer 1

OSI Layer 1 comprises three sublayers: encoding, parallel to serial and amplifiers, LEDs, and lasers. Layer 1 pushes data to mind-blowing speeds of 20Tbps across ocean floors via fiber cables. New server NICs are pumping data at 200Gbps in data centers.

Layer 1 is where signals are impacted by NEXT (Near End Crosstalk) FEXT (Far End Crosstalk), reflection, refraction, dispersion, absorption, and attenuation just to name a few! More money is spent at Layer 1 than all other layers combined!

Our Free E-Books online for IT students-IT professionals and Anyone wanting to further their technical education: https://drive.google.com/drive/folders/1W2aeHlvdQwZPqBSfylfbLKwLEyzJ7g27?usp=sharing

Links to Documentation
PowerPoints in *.pptx format: https://drive.google.com/file/d/1Y37_ypP1K9IMxgWx-bJBD7hzGRTiT4Nf/view?usp=sharing
Slide Deck in PDF: https://drive.google.com/file/d/1l2l3slaSEQGXfYOUuVJqsj1aMljnMS4n/view?usp=sharing
Video Notes in *.docx: https://drive.google.com/file/d/1jbJwiqf1tWkBLe1WGLiFLztI0lb_ClFO/view?usp=sharing
Video Notes in PDF: https://drive.google.com/file/d/1knfeymLkNUtsYNl30iJeZwq9vTMzf7M1/view?usp=sharing