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CompTIA 🇺🇸 · 6 min read

How to Pass CompTIA A+ Core 1 (220-1201) in 2026: Complete Study Guide

CompTIA A+ Core 1 covers hardware, networking, mobile devices, and troubleshooting — the foundation for any IT support career. This guide covers all 5 domains, the performance-based question format, and a 6-week study plan to pass 220-1201 on your first attempt.

CompTIA A+ is the most recognized entry-level IT certification in the world, and Core 1 (220-1201) is the first of two exams you must pass to earn it. This exam tests your knowledge of hardware, networking, mobile devices, virtualization, and troubleshooting — the exact skills employers expect from a help desk technician or field service engineer on day one. This guide walks you through every domain, explains the performance-based question format, and gives you a concrete 6-week plan to pass on your first attempt.

What Is CompTIA A+ Core 1?

CompTIA A+ Core 1 (exam code 220-1201) is the hardware and infrastructure half of the A+ certification. It focuses on the physical and logical skills that every IT support professional needs: identifying and installing hardware components, configuring network connections, supporting mobile devices, understanding cloud and virtualization basics, and diagnosing hardware and network issues systematically.

A+ Core 1 is designed for:

  • Entry-level IT support technicians and help desk staff
  • Field service technicians who install, configure, and repair hardware
  • Career changers moving into IT from a non-technical background
  • Students in IT programs who want a vendor-neutral credential employers recognize
Why A+ Still Matters in 2026: CompTIA A+ is listed in the U.S. DoD 8140 directive, required for government IT support roles. More importantly, it is the most commonly requested credential in entry-level IT job postings — well ahead of any vendor-specific certification at that level.

Exam Format and Facts

Detail Value
Exam Code 220-1201
Maximum Questions 90 questions
Question Types Multiple choice + performance-based (PBQ)
Duration 90 minutes
Passing Score 675 / 900 (scaled score)
Price $246 USD
Prerequisites None (9–12 months IT experience recommended)
Validity 3 years (CE renewal or retake)

All 5 Exam Domains

Domain Weight Key Topics
1. Mobile Devices 15% Laptop components (RAM, storage, displays, keyboards), tablet and smartphone hardware, mobile OS features, accessories and ports
2. Networking 20% TCP/IP fundamentals, IPv4/IPv6, DHCP, DNS, common ports and protocols, wireless standards (802.11 a/b/g/n/ac/ax), network hardware (switches, routers, access points), cable types
3. Hardware 25% RAM types (DDR4/DDR5, ECC, SO-DIMM), storage (SATA, NVMe, M.2), CPU architecture, motherboard components, PCIe slots, power supplies, display types and connectors, printers
4. Virtualization and Cloud Computing 11% Hypervisors (Type 1 vs Type 2), VMs vs containers, cloud service models (IaaS/PaaS/SaaS), deployment models (public/private/hybrid/community), cloud storage concepts
5. Hardware and Network Troubleshooting 29% CompTIA's 7-step troubleshooting methodology, diagnosing RAM/CPU/storage/display failures, network connectivity troubleshooting, wireless issues, printer troubleshooting, mobile device issues

Hardware and Network Troubleshooting at 29% is the single heaviest domain — do not underestimate it. Candidates who memorize hardware specs but skip troubleshooting scenarios consistently fail.

Performance-Based Questions Explained

Performance-based questions (PBQs) are simulations or interactive tasks that appear at the start of the exam. Instead of choosing from four options, you might be asked to:

  • Drag and drop network devices into the correct positions in a diagram
  • Configure IP settings in a simulated Windows or Linux interface
  • Match cable types to the correct use cases
  • Identify a hardware component from a photo or diagram
  • Order the steps of the CompTIA troubleshooting methodology
PBQ Strategy: PBQs appear first and take longer than multiple-choice questions. If you get stuck on a PBQ, flag it and move on — you can return to it. Running out of time on straightforward multiple-choice questions because of a single PBQ is one of the most common ways candidates fail.

Core 1 + Core 2: The Full A+ Requirement

CompTIA A+ certification requires passing two separate exams. Core 1 (220-1201) and Core 2 (220-1202) are independent — you can take them in any order and there is no combined exam. Each exam costs $246, so the full certification costs $492 if you pass both on your first attempt.

Core 1 vs Core 2 focus areas:

  • Core 1 (220-1201): Hardware, infrastructure, networking, mobile devices, virtualization
  • Core 2 (220-1202): Operating systems (Windows, Linux, macOS, mobile OS), security, software troubleshooting, operational procedures

Most candidates study and sit for Core 1 first because hardware knowledge is foundational — understanding how components work makes OS-level troubleshooting in Core 2 easier to learn.

6-Week Study Plan

Week Focus Daily Goal (~1.5 hrs)
Week 1 Hardware (Domain 3) RAM types, storage interfaces (SATA vs NVMe), PCIe, power supplies, connector identification
Week 2 Networking (Domain 2) TCP/IP, DHCP, DNS, common ports, wireless standards, cable types, network devices
Week 3 Mobile Devices + Virtualization (Domains 1 & 4) Laptop teardown components, smartphone connectors, cloud service models, hypervisor types
Week 4 Troubleshooting (Domain 5) CompTIA 7-step methodology, hardware failure symptoms, network connectivity scenarios, printer issues
Week 5 Practice Exams + Weak Areas Full practice exams, review every missed question, revisit any domain below 70%
Week 6 Final Review + Exam Speed drills on connector types and ports, PBQ practice, light review 2 days before — do not cram the night before

Best Free Resources

  • Professor Messer (professormesser.com): The gold standard for free A+ prep. Complete video course covering all 220-1201 objectives, free on YouTube and his site. Pair with his downloadable study guide ($15).
  • Jason Dion (Udemy): Paid but frequently on sale for $15–20. Known for realistic practice questions and clear explanations of hardware concepts that appear on PBQs.
  • CompTIA CertMaster Learn (official): CompTIA's own learning platform. More expensive but guarantees alignment with current exam objectives.
  • CertLand A+ Core 1 Practice Exam: 340 practice questions covering all 5 domains with detailed explanations — includes 10 free preview questions, no login required.

Exam Day Strategy

  • Flag PBQs and move on if stuck. Each PBQ can cost you 5–8 minutes. Multiple-choice questions are faster and worth the same or more in aggregate.
  • Use process of elimination aggressively. On hardware questions with unfamiliar terms, eliminate clearly wrong answers first — you can often narrow to 2 choices even without certainty.
  • Watch for "most appropriate" phrasing. Many questions have two technically correct answers; CompTIA asks for the best or most appropriate one given the scenario constraints (cost, speed, ease of deployment).
  • Do not leave questions blank. There is no penalty for guessing. If time is running short, select your best guess for any flagged questions before the timer ends.
  • Aim for 75%+ on practice exams before booking. A 5-point buffer above the 70% passing threshold accounts for test-day nerves and slightly harder live questions.

Ready to Practice?

Test your knowledge with our full 340-question A+ Core 1 practice exam — 10 questions free, no login required.

Practice A+ Core 1 Now →

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