Network+ training

CompTIA Network+ Training

A complete, self-paced Network+ (N10-009) course covering all five CompTIA objective domains: networking concepts, network implementation, network operations, network security, and network troubleshooting. Fifty-one lessons written to the level a working network technician actually needs — cabling and Ethernet, IPv4 and IPv6 addressing, dynamic routing, wireless (Wi-Fi 6/6E and 802.11ax fundamentals), WAN technologies, cloud networking, security controls, and a rigorous troubleshooting toolkit from cable testers through packet captures. Bundles with the 900+ Network+ practice questions to give both the depth and the recall practice needed to pass on the first attempt.

Module 1: Networking Concepts

Foundational vocabulary of networking — OSI and TCP/IP models, ports and protocols, topologies, IPv4 and IPv6 addressing, core services (DHCP, DNS, NTP), cloud concepts, and modern architectures like SDN, SD-WAN, SASE, and zero trust.

  • 1 What Network+ Is 8 min Free preview
  • 2 The OSI Model — Seven Layers 12 min 🔒
  • 3 TCP/IP Model and Encapsulation 9 min 🔒
  • 4 Ports and Protocols 12 min 🔒
  • 5 Network Topologies and Types 8 min 🔒
  • 6 IPv4 Addressing and Subnetting 15 min 🔒
  • 7 IPv6 Addressing 10 min 🔒
  • 8 Core Network Services — DHCP, DNS, NTP 12 min 🔒
  • 9 Cloud Concepts and Deployment Models 10 min 🔒
  • 10 Modern Network Architectures — SDN, SD-WAN, SASE, Zero Trust, IaC 10 min 🔒
  • 11 Network Devices and Their OSI Layers 8 min 🔒

Module 2: Network Implementation

Building networks — routing protocols (OSPF, BGP, EIGRP), switching (VLANs, trunks, STP), wireless (802.11 standards, security, design), and the physical layer (copper, fiber, transceivers, installation).

  • 1 Routing Technologies 12 min 🔒
  • 2 Switching Technologies — VLANs, Trunks, STP 12 min 🔒
  • 3 Wireless Standards — 802.11 Family 10 min 🔒
  • 4 Wireless Design and Deployment 10 min 🔒
  • 5 Wireless Security — WPA2, WPA3, and Enterprise Authentication 10 min 🔒
  • 6 Copper Cabling — Categories, Standards, Terminations 8 min 🔒
  • 7 Fiber Cabling — Single-Mode, Multi-Mode, Connectors 8 min 🔒
  • 8 Transceivers, Media Converters, and Physical Interfaces 6 min 🔒
  • 9 Physical Installation Best Practices 6 min 🔒
  • 10 Implementation Planning — Change, Rollback, and Migration 6 min 🔒

Module 3: Network Operations

Running networks over time — documentation and IPAM, change and configuration management, monitoring (SNMP, syslog, flow data), performance metrics, disaster recovery, high availability, backup, and lifecycle management.

  • 1 Documentation and Diagrams 8 min 🔒
  • 2 IP Address Management in Practice 6 min 🔒
  • 3 Configuration Management and Version Control 6 min 🔒
  • 4 Monitoring — SNMP, Syslog, and Flow Data 10 min 🔒
  • 5 Performance Metrics — Bandwidth, Latency, Jitter, Loss 8 min 🔒
  • 6 Disaster Recovery — RTO, RPO, MTTR, MTBF 6 min 🔒
  • 7 High Availability — Redundancy, Load Balancing, FHRP 10 min 🔒
  • 8 Backup Strategies — Types, Rotation, and Testing 6 min 🔒
  • 9 Network Hardening Baselines 6 min 🔒
  • 10 Lifecycle Management — EOL, Patching, and Refresh 6 min 🔒

Module 4: Network Security

Securing networks — foundational security concepts, common attacks (Layer 2 and above), network access control, firewalls and IDS/IPS, secure remote access, and physical security.

  • 1 Security Concepts — CIA, AAA, Defense in Depth 8 min 🔒
  • 2 Common Attacks at Layer 2 8 min 🔒
  • 3 Common Attacks Above Layer 2 10 min 🔒
  • 4 Network Access Control — 802.1X, NAC, MAB 8 min 🔒
  • 5 Firewalls, IDS, and IPS 10 min 🔒
  • 6 Secure Remote Access — VPNs, Jump Boxes, and ZTNA 10 min 🔒
  • 7 Physical Security 6 min 🔒
  • 8 Wireless Security Deep Dive 8 min 🔒

Module 5: Network Troubleshooting

The largest exam domain — the CompTIA troubleshooting methodology, cable and interface issues, hardware and software diagnostic tools, and common problems at every layer from cable to routing to name resolution.

  • 1 The CompTIA Troubleshooting Methodology 8 min 🔒
  • 2 Cable Issues — Damage, Attenuation, EMI, Split Pairs 8 min 🔒
  • 3 Cable Testing Tools 6 min 🔒
  • 4 Interface Issues — Counters, Errors, and What They Mean 6 min 🔒
  • 5 Hardware Tools for the Field 5 min 🔒
  • 6 Command-Line Tools — Windows 8 min 🔒
  • 7 Command-Line Tools — Linux 9 min 🔒
  • 8 Software Tools — Wireshark, Nmap, and the Rest 8 min 🔒
  • 9 Wireless Troubleshooting — Coverage, Roaming, and Interference 8 min 🔒
  • 10 Common Issues — Layer 2 7 min 🔒
  • 11 Common Issues — Layer 3 7 min 🔒
  • 12 Common Issues — Services (DHCP, DNS, NAT, Certificates) 7 min 🔒