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/1rXhqVsdKJBeV8mDvNYcS-p7mhamSliDe?usp=sharing If you would like to support the channel, Join our channel membership, it’s $2.99/month (less than a Starbucks coffee); see the “Join” button on our channel homepage. null OR Subscribe to the channel as it helps our channel perform better on YouTube’s algorithm. Check out our YouTube channel for more content! YouTube: null Check out our Website: https://www.techsavvyproductions.com/ Mr.V Linkedin: https://www.linkedin.com/in/lowell-vanderpool-57970623/ 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 Email: mrvanderpool@techsavvyproductions.com Quick Access to more videos on TechSavvyProductions Channel: Troubleshooting Windows Lockups, Application Hangs, and Blue Screen of Death https://www.youtube.com/watch?v=qDf35smbCc4 TPM 2.0 using Windows 11 and Windows 10 https://www.youtube.com/watch?v=W16Xm1QWZIY Windows 10 Secure Boot: Sharpen your Security https://www.youtube.com/watch?v=ZF1xGdhyUyw UEFI Explained: Windows 10 and UEFI https://www.youtube.com/watch?v=G_qKrJPuAmg Windows Recovery Environment WinRE: Explained https://www.youtube.com/watch?v=6yonrl3LU58 How to Rescue Data when Windows will not Boot https://www.youtube.com/watch?v=91A9Jr7Yy14 Windows 10 startup problems: Fixing Boot Problems https://www.youtube.com/watch?v=JdRPYjYKc9g Day 1: Troubleshooting Windows Applications. What is a process and What are threads? https://www.youtube.com/watch?v=H1eN5kGJ5oc Day 2: Troubleshooting Windows Applications. Types of Applications and Processes. https://www.youtube.com/watch?v=My-n26Xl7ok Day 3: Troubleshooting Windows Applications: Process States https://www.youtube.com/watch?v=g68UQCId4uQ Day 4: Process Explorer Metrics and Troubleshooting Windows Applications https://www.youtube.com/watch?v=0_stNrjBv9k Day 5: A Look at Microsoft Store Apps and Why we don’t Troubleshoot them! https://www.youtube.com/watch?v=UvOjmOXUU5I Day 6: Linux GUI Applications are coming to Windows https://www.youtube.com/watch?v=FikZ0tiovS8 Day 7: Understanding Application *.DLL files https://www.youtube.com/watch?v=_EFcQJC-lWQ Windows Services: A Technical Look at Windows 11 and Server 2022 Part 1 https://www.youtube.com/watch?v=W0wq-G-OTno Hyper-V Explained: Providing Network-Storage-Graphic performance in a Virtual Machine https://www.youtube.com/watch?v=hPqoPtUjQa8 Hyper-V: Understanding Virtual Machines https://www.youtube.com/watch?v=cQl_3HmB9gw Hyper V: Advanced Topics Performance NUMA and Shielded VMs https://www.youtube.com/watch?v=nu8dfQFuGzs Out of Band Server Management: A Look at HP iLO https://www.youtube.com/watch?v=8JoyUqGtXtk Troubleshooting Windows 10 and Windows 11 Using Task Manager https://www.youtube.com/watch?v=yuDXmMROH6Y How to Rescue Data when Windows will not Boot https://www.youtube.com/watch?v=91A9Jr7Yy14 Advanced Troubleshooting for Frozen/Lockup Computers/Servers and Applications https://www.youtube.com/watch?v=8cyLKyw58TM Troubleshooting Windows Lockups, Application Hangs, and Blue Screen of Death https://www.youtube.com/watch?v=qDf35smbCc4 Understanding and Troubleshooting Fiber-Optic Communication https://www.youtube.com/watch?v=tI55Y1fI6BE Keeping Your Fiber Optic Skills Sharp: Understanding Fiber-optic communication https://www.youtube.com/watch?v=bOl1ipeSgBM Maximize your Server RAID Performance https://www.youtube.com/watch?v=MxyVSzuw3lg Network Switch Explained: ASIC chips, Extending your LAN https://www.youtube.com/watch?v=0-CIS-u-X_U