CompTIA A+ Certification Exam Guide
The CompTIA A+ certification has two core exams now: 220-1101 and 220-1102. They replaced the older 900-series exams back in 2022. You need to pass both to earn the credential. The exam covers everything from hardware troubleshooting to basic networking, security fundamentals, and operational procedures. It is the entry-level standard that most IT help desk roles require. Most study materials follow the official exam objectives, which CompTIA publishes as a PDF on their website. That PDF is the authoritative source. Everything else is someone's interpretation of it. I've seen too many people waste money on third-party books that include topics CompTIA already removed or emphasize outdated material. Stick to the objectives document and use any practice test you can find to validate your understanding. The exam format consists of multiple-choice questions and performance-based questions. The PBQs are the part people complain about most. They show up at the start of the exam as interactive simulations where you have to drag components into place, configure a router, or arrange troubleshooting steps in the correct order. They count toward your score just like regular questions. There is no penalty for guessing on PBQs either, so never leave them blank.
I ran into a specific issue last year while preparing for 220-1102. The practice PBQ for configuring a wireless access point had a slightly different interface than the real exam. The options for channel selection were displayed differently, and the bandwidth dropdown had extra choices that weren't in the study guide. I spent about two hours just clicking through every menu option available in the practice version to map out what could be selected. That gave me enough familiarity that when I saw the same type of PBQ on the actual exam, I didn't waste time second-guessing the interface. I answered it in under three minutes instead of the ten minutes I would have needed otherwise. Another thing most guides skip over: the exam weight distribution changes slightly between versions. For 220-1101, Device Setup and Configuration is roughly 18 percent of the exam, followed by Mobile Devices at about 14 percent, Networking at 20 percent, Hardware at 22 percent, and Software Troubleshooting at the remaining 26 percent. For 220-1102, the split shifts toward Security (15 percent), Software Troubleshooting (28 percent), and Operational Procedures (14 percent). If you study everything equally, you'll spend too much time on lower-weight topics. Focus your energy on the higher-weight areas first.
Study Strategy That Actually Works
Start with Professor Messer's free video course on YouTube. It covers every objective in order. You don't need to pay for anything from him. After watching a section, go do the practice questions that correspond to it. Jason Dion's practice exams on Udemy are useful, but don't treat your practice exam scores as gospel. When I took my first Dion practice test for 1101, I scored 82 percent. I felt confident. I took the real exam a week later and scored 790 out of 900 on the first attempt. The practice tests overestimate your readiness because the questions tend to be more straightforward than the actual exam. Hands-on experience matters more than you'd think. You cannot learn physical hardware identification from a screen alone. I went to a local repair shop and asked if I could watch them replace laptop motherboards and power supplies for an afternoon. They let me. I picked up how to identify SODIMM slots, how to properly discharge static before touching components, and how to read the small print on motherboard connectors. That experience directly helped me answer PBQs about internal component placement faster than people who only studied from books. Networking concepts are where most people stumble. IP addressing, subnetting, and DNS resolution aren't intuitive. You need to be comfortable converting between binary and decimal, calculating subnet masks, and explaining what happens when a DNS lookup fails. The exam doesn't ask you to subnet a /28 network from scratch, but you will see questions about which IP address belongs to which subnet, and you need to know quickly. If you can't do basic subnet math in your head within five seconds, you're going to run out of time on the exam.
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Performance-Based Questions and the Testing Environment
The testing center environment is controlled. You get a whiteboard and marker for scratch work, which is useful for PBQs and subnet calculations. Bring your own if you're allowed, but most Pearson VUE centers won't let you. The exam gives you about 90 minutes for 90 questions on each test. That works out to roughly one minute per question, but some will take longer and some will take less. The PBQs at the beginning eat into your time, so budget accordingly. Flag questions you're uncertain about and move on. The exam lets you mark questions for review. I recommend flagging anything where you have to guess between two answers. Come back to them at the end. Spending three minutes agonizing over a single question when you could have answered three others in that time is how people fail by running out of time, not by lacking knowledge.
Common Pitfalls to Avoid
One major trap is over-studying the hardware identification section. Yes, you need to know the difference between SATA and SAS, between ECC and non-ECC RAM, between LED and OLED displays. But the exam doesn't ask you to identify obscure legacy connectors like Molex or IDE. Those are mentioned in the objectives but rarely appear in meaningful question form. Don't spend more than an hour total on legacy connector memorization. Another pitfall is ignoring the soft skills portion, especially in 220-1102. Operational Procedures covers communication with clients, professional conduct, and safety guidelines. These questions feel vague because they are. The correct answer always aligns with best practices: document everything, get written authorization before touching a system, respect data privacy, and follow chain of custody procedures for evidence. If a question asks what to do first when a client reports a problem, the answer is almost always to ask clarifying questions and document the issue before taking any action. Security questions have also gotten heavier in recent iterations. You need to understand the difference between symmetric and asymmetric encryption at a conceptual level, know what SSL and TLS actually are, understand port numbers for common protocols, and recognize common attack vectors like phishing, ransomware, and social engineering. You don't need to be a security specialist. But if you skip the security sections because you think they're too advanced for an entry-level cert, you'll miss a significant chunk of the exam.
CompTIA A+ Certification Exam Guide: Where to Get the Official Objectives
The official exam objectives are free at comptia.org. Download the PDF for both 220-1101 and 220-1102. Cross-reference every topic you study against that document. If a study resource covers something not listed in the objectives, it's either outdated or it's extra material that won't appear on the exam. CompTIA sometimes includes questions outside the stated objectives, but those are rare and usually test foundational knowledge that overlaps with listed topics anyway. There is no single download link that contains the actual exam questions. Anyone selling "brain dumps" or leaked questions is operating illegally, and using those materials violates CompTIA's agreement. Your exam score will be invalidated if caught, and you'll be banned from retaking the test. The penalty isn't worth whatever short-term advantage a dump might give you. The real takeaway is that the A+ exam is wide but not deep. It tests whether you know enough to walk into a help desk role and not break things. Study smart, focus on the high-weight topics, practice the PBQs with interactive simulators, and get your hands on actual hardware when you can. Pass both exams and you have a credential that opens doors in the industry.
