CompTIA's Security+ appears in over 40,000 active job postings on any given day. The A+ shows up in even more. Yet somewhere between 30 and 40 percent of people who register for CompTIA exams don't pass on the first attempt—not because the material is too hard, but because they studied the wrong way or picked the wrong cert to start with.
If you're trying to learn CompTIA and actually use it to get hired or promoted, this guide covers the full picture: which cert to tackle first, how long it realistically takes, what study methods work, and where the common mistakes happen.
Why CompTIA Matters (and Why Vendor-Neutral Is a Feature)
CompTIA certifications are vendor-neutral. That sounds like a small thing until you realize what it means in practice: an employer hiring with a CompTIA requirement doesn't care whether you've only used Windows or only used Linux, or whether your last job was Cisco-heavy. The cert is evidence you understand the underlying concepts, not just one company's implementation.
That's especially true for Security+. It's one of a handful of certifications approved under DoD Directive 8570/8140, which means U.S. federal agencies and defense contractors often require it by policy—not just preference. If you're aiming at government IT work or defense contractor roles, Security+ is effectively a checkbox, not an optional credential.
The A+ is different. It's the world's most widely-held entry-level IT cert, and for help desk and IT support roles, it functions as a hiring filter. Many job postings list it as a minimum requirement precisely because it's a known quantity—every A+ holder has been tested on the same material.
The CompTIA Learning Path: Which Cert First?
The official CompTIA path goes: A+ → Network+ → Security+, with more specialized certs (CySA+, PenTest+, CASP+) branching off from there. That sequence makes sense for people with no IT background. Here's how to think about where you fit:
- No IT experience at all: Start with A+. It covers hardware, operating systems, troubleshooting, and basic networking. It's the foundation everything else builds on.
- Already working in IT support: You may be able to skip A+ and go directly to Network+ or Security+. If you can explain subnetting, VLANs, and the OSI model without looking them up, Network+ content will feel familiar.
- Targeting cybersecurity specifically: Security+ is the entry point. CySA+ (Cybersecurity Analyst) is the next step if you want to move into SOC work. PenTest+ is for offensive security—it assumes Security+ knowledge.
- Cloud-focused: CompTIA Cloud+ and the newer CompTIA Cloud Essentials+ sit parallel to Security+. They're less universally required but more specific to cloud infrastructure roles.
One common mistake: treating these certs as purely sequential when they're not. A network engineer who's been working with BGP and OSPF for three years doesn't need to take A+. Map the cert to the job you're targeting, not to an arbitrary sequence.
How to Learn CompTIA: What the High-Pass-Rate Approach Looks Like
People who pass CompTIA exams on the first try tend to do a few specific things differently from those who don't.
Get the Official Objectives and Use Them as a Checklist
CompTIA publishes the exam objectives document for every certification—free, on their website. This is the actual blueprint for the test. Before you buy a single course or book, download it. Every domain, every objective, every sub-objective is listed. Your study plan should be a checklist through that document, not through whatever chapter order a course author decided on.
Don't Rely on a Single Resource
No single course covers every objective in equal depth. Instructors have areas they know better than others, and some objectives get glossed over. The people who fail CompTIA exams often got 95% through one video course and called it done. The ones who pass combine a course with a study guide (Professor Messer's free notes are the most widely used) and practice questions from a dedicated question bank.
Do Practice Exams Under Real Conditions
CompTIA exams include performance-based questions (PBQs)—simulations where you have to configure a firewall, interpret a log file, or set up a network segment. These aren't multiple-choice. If you've only done multiple-choice practice, PBQs will throw you off. Any practice exam resource worth using will have some form of simulation or lab component.
The benchmark most exam prep instructors use: when you're consistently scoring 85%+ on practice exams you haven't seen before, you're ready. Don't schedule the real exam at 70%—the actual exam is harder than most prep materials, not easier.
Set a Schedule, Not Just a Goal
Most people studying for A+ work through it in 60-90 days studying 1-2 hours per day. Network+ typically takes 4-8 weeks for someone with networking background, longer without. Security+ is usually 6-10 weeks. These aren't guarantees—they're medians. If you're studying 30 minutes on weekends only, double those numbers.
How to Learn CompTIA for Free (and What You Can't Skip)
A meaningful portion of CompTIA prep material is free. Professor Messer's video courses and study guides are free on his website—they're the most widely used free resource in the community and the quality is genuinely good. Jason Dion's free YouTube content covers many objectives. Reddit's r/CompTIA is full of people who have just taken specific exams and will tell you exactly which topics showed up.
What you usually can't avoid paying for: a quality practice exam bank. Free practice questions online tend to be outdated or of poor quality. A $30-40 practice exam subscription (Dion Training, ExamCompass, or similar) is probably the highest-ROI spend in your prep. The other unavoidable cost is the exam voucher itself: A+ is two exams at roughly $246 each, Network+ and Security+ are single exams around $370.
Top Courses to Build Your Tech Foundation
The courses below aren't CompTIA exam prep in the traditional sense—they're rigorous technical courses for IT and data professionals who want to extend their skills beyond certification fundamentals into areas that are increasingly relevant for cloud, security, and infrastructure roles.
Neural Networks and Deep Learning Course
Offered on Coursera with a 9.8 rating, this course builds your understanding of how machine learning systems work at the architecture level—directly applicable if you're moving into cloud infrastructure, AI security, or DevSecOps roles where understanding the systems you're protecting matters as much as the cert.
Applied Machine Learning in Python Course
A 9.7-rated Coursera course that covers practical ML implementation in Python—useful for IT professionals moving into data engineering or cloud roles where scripting and automation are expected alongside traditional sysadmin skills.
Production Machine Learning Systems Course
Covers the infrastructure side of deploying ML systems at scale on Coursera (rated 9.7)—relevant for cloud and infrastructure engineers who are being asked to support ML workloads alongside traditional IT responsibilities.
Structuring Machine Learning Projects Course
A focused Coursera course (9.8 rating) on project structure and decision-making in ML systems—good for IT managers and senior engineers who need to evaluate and oversee AI/ML projects without necessarily writing the code.
FAQ
How long does it take to learn CompTIA A+?
Most people with no prior IT experience take 60-90 days studying 1-2 hours daily. If you're already working in IT support, 4-6 weeks is realistic. The A+ requires passing two separate exams (Core 1: 220-1101 and Core 2: 220-1102), so budget study time and exam fees for both.
Is CompTIA hard to learn on your own?
Self-study works fine for CompTIA—probably 80% of people who pass do it without a formal bootcamp or classroom. The material is well-documented and the free resources are genuinely good. The main risk with self-study is not covering all the objectives, which is why the official exam objectives document is essential from day one.
What order should I learn CompTIA certifications?
For people with no IT background: A+, then Network+, then Security+. For people already working in IT: start with whatever cert maps to your current or target job. A network engineer targeting Security+ doesn't need to detour through A+. Check the prerequisites CompTIA lists—most certs don't have formal prerequisites but do assume prior experience.
How much does it cost to learn CompTIA?
Exam vouchers are the main cost: A+ is two exams at ~$246 each ($492 total), Network+ and Security+ are ~$370 each. Study materials can range from $0 (Professor Messer's free content) to $500+ for a full bootcamp. A realistic self-study budget for A+ including practice exams and one course: $150-250 before the exam vouchers.
Can I get a job with just CompTIA A+?
Yes—A+ is a legitimate entry point for help desk and IT support roles. Median salary for A+ holders in entry-level IT support in the U.S. is roughly $40,000-$55,000. Adding Network+ or Security+ moves that up meaningfully. The cert gets you the interview; what you do with it once you're hired determines where you go from there.
Is CompTIA Security+ worth it in 2026?
Still yes, especially for anyone targeting government IT, defense contractors, or corporate security roles. The DoD 8570/8140 requirement isn't going away. For private sector roles, Security+ is widely recognized but increasingly competing with cloud-specific security certs (AWS Security Specialty, GCP Professional Cloud Security Engineer). If you're targeting cloud security specifically, you may want Security+ plus a cloud cert rather than Security+ alone.
Bottom Line
The fastest path to actually learning CompTIA—and passing the exam—is: download the official exam objectives, find a course that covers those objectives, supplement with Professor Messer's free materials, and don't schedule the real exam until you're consistently at 85%+ on fresh practice tests.
Which cert to start with depends entirely on where you are and where you're going. A+ for people starting from zero in IT. Network+ if you already understand basic networking. Security+ if cybersecurity is the target. Don't pay for a bootcamp until you've tried self-study—the free resources for CompTIA are legitimately good, and the material rewards consistent practice more than expensive instruction.
One thing that's often underestimated: the performance-based questions. Spend time with lab simulations, not just flashcards. The people who fail CompTIA exams despite knowing the content are usually the ones who encountered a PBQ they'd never practiced in a hands-on environment.