Network+ N10-009 [Ep 2/75] - The OSI Model - Your Troubleshooting Superpower | FREE Complete Course скачать в хорошем качестве

Network+ N10-009 [Ep 2/75] - The OSI Model - Your Troubleshooting Superpower | FREE Complete Course

🎯 MASTER THE OSI MODEL: Episode 2/75 | The 7-layer framework every network pro uses for troubleshooting. Learn all layers + memory trick in 13 minutes. 📋 WHAT YOU'LL LEARN: ✓ All 7 OSI layers explained (Physical → Application) ✓ Memory trick: "Please Do Not Throw Sausage Pizza Away" ✓ How help desk uses OSI for systematic troubleshooting ✓ Layer-by-layer problem isolation technique ✓ Common protocols at each layer ✓ PBQ strategy for layer identification questions 🔔 SUBSCRIBE + 🔔 BELL for 2-3 new episodes every week 👍 LIKE if you can now list all 7 layers from memory! ⏱️ TIMESTAMPS: 0:00 - Why OSI Model Matters (Help Desk Scenario) 1:12 - What Is The OSI Model? 2:43 - Layer 1: Physical 4:15 - Layer 2: Data Link 5:47 - Layer 3: Network 7:17 - Layer 4: Transport 9:07 - Layer 5: Session 9:44 - Layer 6: Presentation 10:35 - Layer 7: Application 12:01 - Memory Trick You'll Never Forget 12:49 - Real-World Troubleshooting Example 14:25 - PBQ Prep: Layer Identification 15:24 - Exam Trap: Layer 3 Switches 16:17 - Quick Recap of All 7 Layers 17:21 - Next Episode: TCP/IP Model 🎓 EXAM OBJECTIVE: 1.1 - OSI Model Layers (Domain 1: 23% of exam) 📚 THE 7 LAYERS: 1. Physical - Cables, signals, connectors 2. Data Link - MAC addresses, switches, frames 3. Network - IP addresses, routers, packets 4. Transport - TCP/UDP, ports, reliability 5. Session - Session management, APIs 6. Presentation - Encryption, data formatting 7. Application - HTTP, DNS, SMTP, FTP 🧠 MEMORY TRICK: Please Do Not Throw Sausage Pizza Away 💼 WHY THIS MATTERS: Every IT interview asks about OSI. Help desk uses it daily. Network engineers troubleshoot with it. This isn't just exam knowledge—it's how pros actually work in the field. 📚 SERIES STRUCTURE: 🔵 Phase 1 (Eps 1-25): Foundation - OSI, TCP/IP, Subnetting, Routing 🟢 Phase 2 (Eps 26-45): Implementation - VLANs, Wireless, VPNs 🟡 Phase 3 (Eps 46-55): Security - Firewalls, Encryption, Attacks 🔴 Phase 4 (Eps 56-75): Operations - Monitoring, Troubleshooting ✨ WHY THIS COURSE: 100% FREE (no paywalls) Beginner-friendly (zero experience needed) Real-world job scenarios in every episode PBQ prep throughout Exam traps identified Memory tricks included Career-focused, not just exam-focused 🔗 RESOURCES: 🌐 CompTIA Official: https://www.comptia.org/certification... 📝 Register for Exam: https://www.comptia.org/testing 📋 Exam Objectives: https://www.comptia.org/training/reso... ⚡ NEXT EPISODE: TCP/IP Model - How the Internet Actually Works Coming soon! Learn the 4-layer model that runs the internet + how it maps to OSI. 💬 ENGAGEMENT: 📌 Questions? Drop them in the comments below! 📌 Practice Questions: Check pinned comment for 3 exam-style questions 📌 Can you recite all 7 layers? Comment them below! 📌 Which layer confuses you most? Let us know! 👍 LIKE this video | 💬 COMMENT the memory trick | 📤 SHARE with anyone studying for Network+ #NetworkPlus #OSIModel #CompTIA #N10009 #ITCertification #Troubleshooting #NetworkingBasics #ITJobs #HelpDesk #NetworkEngineer #CyberSecurity #TechCareer --- ⚠️ DISCLAIMERS: This is an independent educational resource to help students prepare for the CompTIA Network+ certification exam. Not affiliated with, endorsed by, or sponsored by CompTIA, Inc. CompTIA® and Network+® are registered trademarks of CompTIA, Inc. All trademarks are property of their respective owners. ACCURACY: We've made every effort to ensure accuracy, but this content is provided for educational purposes only. We cannot guarantee exam pass rates or career outcomes. Information current as of February 2026. Exam content may change—verify at CompTIA.org. TECHNICAL CONTENT: OSI Model explanations reflect industry-standard teaching for Network+ certification. Some networking concepts (like SSL/TLS layer classification) may be simplified for exam purposes while remaining technically accurate. LIABILITY: By using this content, you acknowledge the creators are not liable for errors, omissions, or outcomes related to exam results, career decisions, or job placement. Always refer to official CompTIA resources for authoritative exam information. © 2026 PBQ Academy, Labbe Media, LLC | Free IT Certification Education