CompTIA · Official Blueprint · Last reviewed May 2026
The official CompTIA N10-009 exam covers 5 domains. Domain weights tell you exactly how much of the exam each topic represents — and where to invest your study time.
Covers the topics, concepts, and applied skills examined under the Networking Concepts domain. Study the official exam objectives and practise questions in this area to build confidence and accuracy before your exam.
Practice Networking Concepts questionsCovers the topics, concepts, and applied skills examined under the Network Implementation domain. Study the official exam objectives and practise questions in this area to build confidence and accuracy before your exam.
Practice Network Implementation questionsCovers the topics, concepts, and applied skills examined under the Network Operations domain. Study the official exam objectives and practise questions in this area to build confidence and accuracy before your exam.
Practice Network Operations questionsCovers the topics, concepts, and applied skills examined under the Network Security domain. Study the official exam objectives and practise questions in this area to build confidence and accuracy before your exam.
Practice Network Security questionsCovers the topics, concepts, and applied skills examined under the Network Troubleshooting domain. Study the official exam objectives and practise questions in this area to build confidence and accuracy before your exam.
Practice Network Troubleshooting questionsThe heaviest domain on the N10-009 is "Networking Concepts" at null%. Start here and return to it regularly.
Allocate study time proportional to domain weight — a 25% domain deserves roughly 25% of your prep hours.
Never skip a low-weight domain. A 10% domain still represents 5–7 exam questions — enough to make the difference between pass and fail.
Use Courseiva domain analytics to track your accuracy per domain automatically. The system routes extra questions to your weak areas.
Courseiva tracks your accuracy per domain automatically and routes you toward your weakest areas — no manual configuration needed.
IPv4 Subnetting
Subnetting is the skill that separates people who understand networking from people who just use it.
VLANs & Trunking
Without VLANs, every device on a switch is in the same broadcast domain.
OSI & TCP/IP Models
Every time you load a webpage, seven invisible layers of technology coordinate to make it happen and most people could not name three of them.
Ethernet & Switching
Ethernet is the technology that connects almost every wired device in the world.
IPv6
IPv4 has roughly 4.
NAT & PAT
Your home router gives your laptop a private IP address like 192.