DigitalEdge OSI Flipcard Hub

📚 Choose Your Certification Path

Customize your OSI Model learning experience

🎯 Network+ Exam Focus

CompTIA N10-009

Domain Coverage: Domain 1 - Networking Fundamentals (24% of exam)

Expected Questions: 3-5 questions directly on OSI Model layers, functions, and troubleshooting

Key Focus Areas:

  • Layer functions and protocols at each layer
  • Troubleshooting using OSI methodology (bottom-up/top-down)
  • Understanding encapsulation/de-encapsulation
  • Comparing OSI to TCP/IP model
Practice Network+ Questions →
📊 91 students practicing

🎯 CCNA Exam Focus

Cisco 200-301

Domain Coverage: Network Fundamentals (20% of exam)

Deep Understanding Required: OSI is foundational to routing, switching, and troubleshooting

Key Focus Areas:

  • Layer 2: Ethernet, MAC addressing, VLANs, STP
  • Layer 3: IP addressing, routing protocols, ICMP
  • Layer 4: TCP vs UDP, port numbers, windowing
  • Protocol data units (PDU) at each layer
  • Comparing OSI to TCP/IP model in depth
Practice CCNA Questions →
📊 19 students practicing

🎯 General Networking

Foundation

Universal Foundation: The OSI Model is essential for any networking career

Why It Matters:

  • Troubleshooting: Systematic approach to isolating network issues
  • Communication: Common language for IT professionals worldwide
  • Protocol Understanding: Know where protocols operate and interact
  • Career Foundation: Required knowledge for network engineer, admin, analyst roles

What You'll Learn: Layer functions, protocols, encapsulation, real-world applications

Explore All Certifications →
🌍 Free for all learners

Click a layer to open its flipcards.

EN / ES text on this page only — flipcards open in their own window.

Layer 7
Application Layer
User-facing services: email, web, file sharing. Uses protocols like HTTP, DNS, SMTP.
Layer 6
Presentation Layer
Formats, encrypts, and compresses data (JPEG, MP3, TLS/SSL, Unicode).
Layer 5
Session Layer
Starts, manages, and ends sessions (logins, remote sessions, streaming).
Layer 4
Transport Layer
End-to-end delivery, reliability, and ports using TCP and UDP.
Layer 3
Network Layer
Logical addressing and routing with IP, routers, and packets.
Layer 2
Data Link Layer
Frames, MAC addresses, switches, and error detection on the local link.
Layer 1
Physical Layer
Cables, signals, connectors, and bits on the wire or fiber.

Tip: Adjust each link (href) so it matches the actual filename of your flipcard files.