Quick Reference

Static N10-009 study cards — OSI layers, common ports, protocols, and cable types.

Want everything in one place? Open the full study guide.

📡
OSI MODEL
All 7 layers with protocols and descriptions
→
🔌
COMMON PORTS
50 ports with searchable, filterable table
→
📋
PROTOCOLS
TCP/UDP, DHCP, DNS, NTP, SNMP breakdowns
→
🔧
CABLE TYPES
Cat5e/6/6a, fiber types, connectors
→