Is the CompTIA Network+ Exam Hard? (N10-009 Guide for 2026)

Short answer: yes, the CompTIA Network+ (N10-009) is harder than its reputation as an entry-level cert suggests, but it is absolutely passable on the first attempt. The difficulty is not in the concepts. It is in the breadth (Network+ touches everything from cabling to cloud) and in the troubleshooting questions that make up nearly a quarter of the exam.

If you put in 6 to 10 weeks and lean heavy on subnetting drills plus troubleshooting flashcards, the Net+ is well within reach. Here is what actually makes it hard, how long real candidates study, and three sample questions to test where you stand.

What the N10-009 actually tests#

The exam is up to 90 questions in 90 minutes. Scaled score is 100 to 900, with a passing line at 720. Cost is $369 USD per attempt (vouchers and student bundles can bring this down).

The format mix:

Multiple choice and multiple response. The bulk of the exam.
Performance-based questions (PBQs). A handful at the start. You match cables to ports, configure a wireless network in a simulated GUI, identify ports on a router, or drag-and-drop OSI layer functions. Each can swallow 5 to 8 minutes.

The biggest piece of advice from people who have passed: flag the PBQs and skip them on the first pass, exactly the same advice as Security+. PBQs are the most time-expensive items on the exam, and they appear first specifically to drain your time budget if you let them.

What makes it hard (the five domains)#

The N10-009 blueprint splits into five weighted domains:

Networking Concepts (23%). OSI model, networking appliances, cloud concepts, common ports and protocols, transmission media, topologies. The OSI model gets tested constantly; know it cold.
Network Implementation (20%). Routing, switching, wireless devices and standards (Wi-Fi 6, 6E, 7), physical installations. Static routing and basic dynamic routing concepts (OSPF, BGP) appear here.
Network Operations (19%). DNS, DHCP, network monitoring, performance metrics, configuration management, documentation. SNMP and syslog questions are common.
Network Security (14%). Logical security, common attacks (MITM, DDoS, ARP poisoning), network hardening. Smaller domain than Security+, but expect VPN concepts and network access control questions.
Network Troubleshooting (24%). The largest domain. Cabling and physical interface issues, common network issues, troubleshooting tools (ping, traceroute, tcpdump, Wireshark, dig, nmap), performance issues.

The 24 percent troubleshooting domain is where most retake candidates lose the most points. The questions test methodology (CompTIA's 7-step troubleshooting model) almost as much as the technical answer itself.

How long most people study#

People who pass on the first try put in:

6 to 8 weeks if they have prior IT or hands-on networking experience (a help-desk role, ISP support, home lab time)
8 to 10 weeks if Network+ is their first cert and they are coming from a non-IT background
10 to 14 weeks if they are studying part-time around a full-time job and have no prior networking exposure

Inside that window, the ratio that works is roughly 40 percent practice questions, 25 percent reading or video on weak topics, 25 percent subnetting drills, and 10 percent hands-on (Packet Tracer or a home lab). Subnetting is the gatekeeper. If you cannot calculate a /27 in your head in under 30 seconds, drop everything and drill subnetting until you can.

CompTIA retake policy#

If you fail on the first attempt, you can retake immediately, no waiting period. After a second fail, you must wait 14 calendar days before each subsequent attempt. CompTIA recommends additional preparation between attempts but does not require it. Each attempt is a full $369, so unprepared retakes add up fast.

Three sample questions to test yourself#

Click any answer to reveal the correct one and an explanation.

Sample question

Pick an answer

A user reports intermittent connectivity issues from their workstation. Pings to the default gateway succeed, but pings to internet hosts fail intermittently. The technician notices the workstation connects through a 30-meter Cat5e cable that runs along the ceiling near fluorescent lighting and an HVAC unit. What is the most likely cause?

Sample question

Pick an answer

A network has the address 192.168.10.0/24 and needs to be divided into 4 equal subnets. What is the subnet mask, and how many usable hosts per subnet?

Sample question

Pick an answer

A user reports they can ping a remote server by IP address but not by hostname. What is the most likely cause?

If you got all three, your fundamentals are solid. If you missed Question 2, drill subnetting until you can compute any /N mask, network/broadcast address, and usable host count without paper. Subnetting is the single highest-leverage topic on the entire exam.

So is it hard?#

Network+ is hard the first time you sit down with a 24-question troubleshooting block and have to pick between three plausible-sounding causes. It stops feeling hard once you have done 50+ scenarios and your "what would the OSI model say" reflex is automatic.

The candidates who fail are usually the ones who treated it as easy because the marketing called it entry-level, or who memorized port numbers without ever opening Wireshark or building a small home lab.

If you give yourself 6 to 10 weeks, master subnetting cold, drill the OSI model and common ports until they are reflexive, and put in 800+ practice questions weighted toward troubleshooting, the Network+ is within reach.

Practice the kind of questions that show up on the exam#

ExamCoachAI generates N10-009 questions in the same style you saw above, with explanations for every wrong answer and step-by-step reasoning for the subnetting and troubleshooting questions. The free tier gives you 10 questions a day on any of our 50+ certifications, no credit card needed.

Ready to put this into practice? Start a free practice test on ExamCoachAI.