FR FieldReady Academy
CompTIA Network+ N10-009

Every lesson in NetPlus Academy

Self-paced CompTIA Network+ N10-009 course with adaptive training and practice exams.

Start the free course Read the cheat sheet

The exam

ExamCompTIA Network+
CodeN10-009
QuestionsUp to 90
Time90 minutes
PassingThe real exam passes at 720 on a 100 to 900 scale. This course's official-format test uses 80%, that score divided by 900.
Lessons49 lessons across 9 units, about 6.9 hours of reading

Exam domains

DomainWeightLessons
Networking Concepts23%21
Network Implementation20%10
Network Operations19%9
Network Security14%3
Network Troubleshooting24%6

How the course works

  1. Cheat sheet. Everything the exam expects you to recall cold, printable.
  2. Starter test. A few questions per exam domain, with a confidence rating on each.
  3. Your tutorial. Lessons chosen from what you missed or guessed, each with a checkpoint and a deeper explanation.
  4. Practice tests and retraining. 50 questions, weighted like the real exam. Every miss is explained and feeds back into your lessons.
  5. 3 of your last 5 at 80%. That unlocks one full-length test on the real exam's clock: 90 questions in 90 minutes, at its real passing score of 80%. Pass it once and you are ready to book.

Every lesson

The first 15 lessons are open to read here. Every lesson, with its checkpoint, is free inside the course.

Unit 1: Networking Foundations

What a network is, the shapes networks take, and how large networks are organized.

  1. Networks and Their Types 6 min
  2. Physical and Logical Topologies 8 min
  3. Enterprise Architectures and Traffic Flow 8 min

Unit 2: The OSI Model

The seven-layer map the exam uses to describe every protocol, device, and problem.

  1. Layers 1 to 3: Physical, Data Link, Network 8 min
  2. Layers 4 to 7: Transport to Application 8 min
  3. Encapsulation, PDUs, and the TCP/IP Model 7 min

Unit 3: Media, Connectors, and Ethernet

Copper, fiber, transceivers, Ethernet standards, and the four ways traffic is addressed.

  1. Copper Cabling and Connectors 9 min
  2. Fiber Optics 8 min
  3. Transceivers and Ethernet Standards 9 min
  4. Traffic Types and Wireless Media 7 min

Unit 4: IP Addressing and Subnetting

IPv4 structure, special ranges, subnetting you can do in your head, and IPv6.

  1. IPv4 Basics and Address Classes 8 min
  2. Public, Private, and Special Addresses 6 min
  3. Subnetting with Block Sizes 12 min
  4. Subnet Design and VLSM 9 min
  5. IPv6 Addressing 10 min
  6. IPv4 to IPv6 Coexistence in the course

Unit 5: Protocols, Ports, and Network Services

TCP and UDP, the port numbers the exam expects cold, and how DHCP, DNS, and time services work.

  1. TCP, UDP, and the IP Protocol Family in the course
  2. Well-Known Ports in the course
  3. DHCP in the course
  4. DNS in the course
  5. Time Services and Other Network Services in the course

Unit 6: Switching and Wireless

How switches learn, VLANs and trunks, spanning tree, switch features, and Wi-Fi design and security.

  1. How Switches Work in the course
  2. VLANs and Trunking in the course
  3. Spanning Tree Protocol in the course
  4. Switch Interface Features in the course
  5. Wireless Fundamentals in the course
  6. Wireless Security and Design in the course

Unit 7: Routing, Cloud, and Infrastructure

How routers choose paths, NAT and gateway redundancy, the appliances on a network, cloud and modern networking, and the physical room it all lives in.

  1. Routing Fundamentals in the course
  2. Routing Protocols and Route Selection in the course
  3. NAT, PAT, and Gateway Redundancy in the course
  4. Network Appliances and Functions in the course
  5. Cloud Concepts in the course
  6. Modern Networking: SDN, SD-WAN, VXLAN, Zero Trust, IaC in the course
  7. Physical Installations in the course

Unit 8: Operations and Security

Documentation, change control, monitoring, disaster recovery, remote access, and the security concepts, attacks, and defenses on the exam.

  1. Documentation in the course
  2. Life Cycle, Change, and Configuration Management in the course
  3. Monitoring Methods in the course
  4. Monitoring Solutions and Performance Metrics in the course
  5. Disaster Recovery and High Availability in the course
  6. Remote Access and Management Methods in the course
  7. Security Concepts in the course
  8. Common Attacks in the course
  9. Defense and Hardening in the course

Unit 9: Troubleshooting

The seven-step method, the cabling, service, and performance problems the exam describes, and the tools that find them.

  1. The Troubleshooting Methodology in the course
  2. Cabling and Physical Interface Problems in the course
  3. Network Service Problems in the course
  4. Performance and Wireless Problems in the course
  5. Software Tools and Commands in the course
  6. Hardware Tools in the course

On exam day