CompTIA A+ Core 1 (220-1201) Exam Preparation Guide: Study Plan, Topics and Tips

What Is CompTIA A+ Core 1 (220-1201)

CompTIA A+ certification is earned by passing two exams: Core 1 (220-1201) and Core 2 (220-1202). Core 1 focuses on the hardware and infrastructure side of IT support, covering mobile devices, networking fundamentals, hardware components, virtualization and cloud basics, and hardware and network troubleshooting. Core 2 covers the software side, including operating systems, security, and operational procedures.

This is the current V15 version of the exam, which launched in March 2025 and replaced the older 220-1101 exam. If you come across older study material referencing 220-1101, be careful, since content and domain weights have shifted with this update. You need to pass both Core 1 and Core 2 within three years of each other to earn the full A+ certification, and most candidates take Core 1 first since its hardware and networking foundation supports the material covered in Core 2.

CompTIA A+ Core 1 Exam Format

Here is exactly what to expect walking into the 220-1201 exam.

• Number of questions: Up to 90, though many candidates report seeing closer to 82 or 83 in practice

• Question types: Multiple choice (single and multiple response), drag and drop, and performance based questions

• Time limit: 90 minutes

• Passing score: 675 out of a possible 900, on a scaled scoring system rather than a straight percentage

• Cost: 253 USD per attempt

• Delivery: Pearson VUE, either in person or online proctored

The scaled scoring system trips people up regularly. A 675 out of 900 is not the same as needing 75% of questions correct, since CompTIA weights different questions differently based on difficulty. Do not try to calculate your score in real time during the exam. Focus on answering carefully instead.

CompTIA A+ Core 1 Domains and Weights

Understanding how much weight each domain carries is the single most useful thing you can do before building a study plan.

Troubleshooting carries the most weight at 28%, followed closely by Hardware at 25% and Networking at 23%. Together these three domains make up 76% of your score, which should shape how you distribute your study hours.

Domain 1: Mobile Devices (13%)

This domain covers installing and configuring mobile devices, including laptops, smartphones, and tablets. You need to understand different laptop components, display types like LCD, LED, and OLED, mobile accessories, and connectivity methods including Bluetooth, NFC, and cellular. Basic mobile device management concepts are also covered here.

Domain 2: Networking (23%)

This domain builds your networking foundation, covering TCP and UDP protocols, common ports such as 80, 443, 22, 53, and 3389, IPv4 private address ranges, and IPv6 link local addressing. You also need familiarity with wireless standards like 802.11ax, commonly known as Wi-Fi 6, along with network hardware and basic network configuration and troubleshooting.

Domain 3: Hardware (25%)

This domain is where most of the physical component knowledge lives. Expect coverage of cable types including Cat 5e, Cat 6, Cat 6a, and fiber, along with HDMI and USB-C. You need to understand RAM types like DDR4 and DDR5 including ECC memory, storage technologies including SSD and NVMe, RAID configurations, motherboards, and power supply units.

Domain 4: Virtualization and Cloud Computing (11%)

The smallest domain by weight, but still worth genuine attention. It covers cloud computing concepts, including basic service models, along with virtualization fundamentals like virtual machines, hypervisors, and how client side and server side virtualization differ.

Domain 5: Hardware and Network Troubleshooting (28%)

The single heaviest domain on the exam, and it draws directly on everything covered in the previous four domains. You are expected to diagnose and resolve issues across hardware components, networking connections, and mobile devices using a logical, methodical approach. While CompTIA does not test a specific named troubleshooting methodology directly, the exam still emphasizes practical troubleshooting skill throughout this section.

CompTIA A+ Core 1 Study Guide: Best Resources to Use

A structured combination of resources tends to work better than relying on just one format. Here is what consistently gets recommended by successful candidates.

Video Courses

Professor Messer offers a complete, free video course covering all current 220-1201 objectives, widely considered one of the strongest free resources available for A+ prep. Paid alternatives, such as courses from well known instructors on platforms like Udemy, are frequently available at a fraction of their list price during sales and offer realistic practice questions alongside video instruction.

Official CompTIA Materials

CompTIA's own CertMaster Learn platform guarantees alignment with the current exam objectives, since it comes directly from the organization writing the test. It costs more than third party alternatives, but removes any uncertainty about whether your study material matches the current version of the exam.

Practice Exams

Full length, timed practice exams are arguably the single most important CompTIA A+ study resource for gauging real readiness. Look for practice tests specifically built around the current 220-1201 objectives with detailed explanations for each answer, not just a correct or incorrect indicator, since understanding why an answer is right builds far more retention than the score itself.

Official Exam Objectives Document

CompTIA publishes the official exam objectives document for 220-1201 directly on its certification website. This is worth reviewing early in your preparation, since it lists every specific subtopic within each domain and helps you avoid spending time on Core 2 material, such as operating systems or security settings, that will not appear on Core 1.

Best Way to Study for CompTIA A+: A 6-Week Plan

Here is a realistic, structured timeline that balances all five domains against their exam weight.

Weeks 1 and 2: Build the Foundation

Work through video course content for Hardware and Networking first, since these two domains combine for 48% of the exam. Take notes actively rather than just watching, and start getting comfortable with core terminology like port numbers, cable types, and RAID levels.

Week 3: Mobile Devices and Virtualization

Cover the two lighter weighted domains, Mobile Devices and Virtualization and Cloud Computing. These require less time overall but should not be skipped, since together they still account for nearly a quarter of your score.

Week 4: Troubleshooting Focus

Dedicate this week specifically to Hardware and Network Troubleshooting, since it carries the most weight of any single domain. Review troubleshooting scenarios across hardware, networking, and mobile devices, connecting this material back to everything covered in the previous three weeks.

Week 5: Practice Exams and Gap Analysis

Take your first full length, timed practice exam under realistic conditions. Review every incorrect answer carefully, identify which domains show the weakest performance, and spend the rest of this week reinforcing those specific gaps rather than restudying everything equally.

Week 6: Final Review and Performance-Based Questions

Take at least one more full length practice exam, and specifically practice performance based questions, since these tend to consume more time than multiple choice questions and catch unprepared candidates off guard. Review key facts one more time, particularly port numbers, cable types, and RAID levels, which come up repeatedly across multiple domains.

CompTIA A+ Exam Tips for Test Day

A few practical strategies make a real difference once you are actually sitting for the exam.

1. Flag performance based questions and move on if you get stuck, since each one can cost you five to eight minutes if you let it. Multiple choice questions are faster and worth just as much toward your score.

2. Use process of elimination aggressively on multiple choice questions, since distractor options are often deliberately similar to the correct answer.

3. Get quality sleep the night before, since clear thinking matters most during multi-step troubleshooting scenarios that require connecting several concepts together.

4. Arrive early and bring valid government issued ID for in person testing, or confirm your workspace and internet stability in advance for online proctored exams.

5. Do not try to calculate your scaled score during the exam. Focus your mental energy on answering each question carefully rather than estimating where you stand.

Conclusion

Preparing for the CompTIA A+ Core 1 (220-1201) exam comes down to understanding the domain weights, using a combination of solid study resources, and giving yourself enough structured time to genuinely absorb the material rather than cramming. Prioritize Troubleshooting, Hardware, and Networking since they carry the majority of your score, but do not neglect Mobile Devices and Virtualization simply because they weigh less. Pair video instruction with the official exam objectives and consistent practice exams, and you will walk into test day with a realistic, well prepared foundation. Once you pass Core 1, you will be halfway to full A+ certification, with Core 2's software focused content waiting as your next step.