CompTIA A+ Study Guide 2026: Pass Core 1 & Core 2 Exams

Last updated: April 2026

Looking for a comprehensive CompTIA A+ study guide to help you pass both Core 1 and Core 2 exams on your first attempt? Whether you’re launching your IT career or transitioning from another field, this complete CompTIA A+ study guide covers everything you need to know—exam details, domain breakdowns, proven study strategies, and the resources that actually work in 2026.

The CompTIA A+ certification remains the gold standard for entry-level IT professionals. With over 1 million certified professionals worldwide and recognition from major employers including Dell, HP, Intel, and government agencies like the Department of Defense, earning your A+ opens doors to a career with real growth potential. This guide walks you through exactly how to get there.

Table of Contents

• What is CompTIA A+ Certification?
• Exam Details: 220-1101 and 220-1102
• Exam Domains and Weighting
• Best CompTIA A+ Study Guide Resources for 2026

What is CompTIA A+ Certification?

The CompTIA A+ certification is a vendor-neutral credential that validates your ability to perform critical IT support tasks across hardware, software, networking, security, and troubleshooting. It’s designed for aspiring IT support specialists, help desk technicians, field service technicians, and desktop support analysts. No formal prerequisites exist, though CompTIA recommends 12 months of hands-on experience in an IT support role before attempting the exams.

A+ certified professionals in the United States earn an average salary between $40,000 and $90,000 annually, with a median of approximately $63,900 according to 2026 data. Entry-level positions like help desk tier 2 support typically start around $45,000, while experienced desktop support analysts can earn $60,000 or more. The certification is recognized by DoD 8140 for roles including technical support specialist and system administrator.

CompTIA A+ Exam Details: 220-1101 and 220-1102

Unlike most CompTIA certifications, the A+ requires you to pass two separate exams—Core 1 (220-1101) and Core 2 (220-1102). Both exams must be from the same version; you cannot mix versions. Here are the complete specifications for each exam:

Exam Codes	220-1101 (Core 1) and 220-1102 (Core 2)
Questions per Exam	Maximum of 90 questions
Question Types	Multiple-choice, drag-and-drop, and performance-based questions (PBQs)
Duration	90 minutes per exam
Passing Score	Core 1: 675/900 | Core 2: 700/900
Cost	$265 USD per exam ($530 total)
Languages	English, German, Japanese, Portuguese, Spanish
Validity	3 years (renewable through CEUs or higher certification)
Testing Provider	Pearson VUE (in-person or online proctored)

Exam Domains and Weighting

Understanding the domain weights is essential for effective study planning. Here’s a complete breakdown of what each exam covers and how to approach each domain.

Core 1 (220-1101) Domains

1. Mobile Devices (15%)

This domain covers the installation and configuration of laptop and mobile device hardware components, including batteries, keyboards, hard drives, RAM, and wireless cards. You’ll need to understand mobile device accessories and ports, network connectivity settings, and mobile device synchronization. Key topics include comparing and contrasting various mobile display and touch screen technologies, installing and configuring laptop hardware, and setting up mobile device network connectivity.

2. Networking (21%)

Networking carries significant weight on Core 1. You must understand TCP/IP fundamentals, common ports and protocols, wireless networking standards (Wi-Fi 5 and Wi-Fi 6), and how to configure SOHO routers and firewalls. Key areas include comparing and contrasting networking hardware, explaining basic networking concepts, configuring SOHO networks, and implementing basic network troubleshooting.

Essential ports to memorize include HTTP (80), HTTPS (443), SSH (22), FTP (20/21), DNS (53), DHCP (67/68), RDP (3389), and SMTP (25). Understanding the difference between TCP and UDP protocols is fundamental.

3. Hardware (25%)

As the largest domain on Core 1, hardware knowledge is critical. Topics span motherboard components and form factors, CPU architectures, RAM types and configurations, storage devices (HDDs, SSDs, NVMe), power supplies, and cooling systems. You’ll need hands-on familiarity with installing and troubleshooting these components.

Pay special attention to cable types and connectors. Know the differences between SATA, PCIe, and M.2 interfaces for storage devices. Understand the characteristics of DDR4 versus DDR5 RAM, and be able to select appropriate components for different use cases.

4. Virtualization and Cloud Computing (11%)

This domain tests your understanding of cloud computing concepts including IaaS, PaaS, and SaaS models. You should understand the purpose and benefits of virtual machines, hypervisors (Type 1 vs. Type 2), and cloud characteristics like elasticity, on-demand access, and resource pooling. While this domain has lower weight, the concepts are straightforward if you understand the fundamentals.

5. Hardware and Network Troubleshooting (29%)

The troubleshooting domain has the highest weight on Core 1. You must apply the CompTIA troubleshooting methodology: identify the problem, establish a theory of probable cause, test the theory, establish a plan of action, verify full system functionality, and document findings. Common scenarios include no boot situations, POST errors, overheating issues, display problems, and network connectivity failures.

Core 2 (220-1102) Domains

1. Operating Systems (31%)

Core 2 opens with its largest domain covering Windows 10, Windows 11, macOS, Linux distributions, and mobile operating systems (Android and iOS). You must understand Windows administrative tools including Task Manager, Event Viewer, Disk Management, and Registry Editor. Command-line proficiency is essential—know basic Windows commands (ipconfig, ping, netstat, sfc, chkdsk) and Linux commands (ls, cd, grep, chmod, sudo, apt-get).

Key areas include comparing operating system types and differences, performing OS installations and upgrades, using appropriate tools for workstation management, and implementing workstation backup and recovery methods.

2. Security (25%)

Security concepts are heavily tested on Core 2. Topics include physical security measures, wireless security protocols (WPA2, WPA3), malware types and removal procedures, social engineering attacks, and best practices for securing workstations. You’ll need to understand user authentication methods, NTFS and share permissions, and data destruction techniques.

Expect questions on malware identification and removal procedures. Know the differences between viruses, worms, Trojans, ransomware, spyware, and rootkits. Understand how to respond to each type of threat using appropriate tools and techniques.

3. Software Troubleshooting (22%)

This domain covers diagnosing and resolving problems with Windows OS, applications, and mobile devices. Common scenarios include Blue Screen of Death (BSOD) errors, slow performance, application crashes, boot failures, and malware infections. You should know how to use Windows recovery options including System Restore, Reset this PC, and Windows Recovery Environment.

4. Operational Procedures (22%)

Often overlooked by candidates, operational procedures cover professional communication, change management, backup procedures, safety and environmental practices, incident response, and documentation. You should understand ticketing systems, scripting basics for automation, and proper procedures for handling prohibited content or PII.

Remote access technologies are also covered here. Understand the differences between RDP, VPN, SSH, and third-party remote access tools, including their appropriate use cases and security implications. For more insights on building foundational IT skills, consider exploring our CompTIA IT Fundamentals certification guide.

Best CompTIA A+ Study Guide Resources for 2026

Success on the A+ exams requires the right combination of study materials. Here are the most effective resources, starting with official CompTIA options and including CertifHub’s comprehensive practice platform.

Official CompTIA Resources

CompTIA CertMaster Learn: This official eLearning platform provides interactive lessons aligned directly with exam objectives. It includes performance-based question simulations, knowledge assessments, and progress tracking. While more expensive than third-party options, CertMaster ensures you’re studying content that reflects current exam versions.

CompTIA CertMaster Labs: Hands-on virtual lab environments let you practice configuring hardware, installing operating systems, troubleshooting networks, and performing security tasks in a safe environment. Labs are particularly valuable for candidates without access to physical equipment.

CompTIA CertMaster Practice: Official practice exams that mirror the actual exam format, including performance-based questions. These are excellent for final exam preparation and identifying weak areas.

Official Exam Objectives: Always download the free exam objectives PDF from CompTIA’s website. This document outlines exactly what you need to know and serves as your study roadmap.

Practice Questions and Exam Simulation

CertifHub A+ Practice Platform: With over 2,500 practice questions covering both Core 1 and Core 2 exam objectives, CertifHub offers one of the most comprehensive question banks available. Each question includes detailed explanations that help you understand not just the correct answer, but why other options are incorrect—critical for exam success. The platform tracks your progress and identifies weak areas, allowing you to focus your study time effectively.

Hands-On Practice Recommendations

No amount of reading replaces hands-on experience. Consider these approaches:

Build a home lab: Purchase an older desktop computer and practice installing RAM, replacing hard drives, configuring BIOS settings, and installing multiple operating systems. Many candidates find used Dell OptiPlex or HP EliteDesk machines affordable for this purpose.

Virtual machines: Use VirtualBox or VMware to create Windows, Linux, and other operating system environments. Practice the commands, administrative tools, and troubleshooting procedures you’ll encounter on the exam.

Network configuration: Set up a home router and practice configuring DHCP, DNS, port forwarding, wireless security, and firewall rules. Understanding these concepts practically makes exam questions much easier to answer. If you’re also considering network-focused certifications, our CompTIA Network+ study guide offers complementary strategies.

8-Week CompTIA A+ Study Plan

This study plan assumes 10-15 hours of weekly study time and covers both exams sequentially. Adjust the timeline based on your prior experience and available study hours.

Weeks 1-2: Core 1 Hardware and Mobile Devices

Begin with hardware fundamentals. Study motherboard components, CPU installation, RAM types, storage technologies, and power supplies. Move to mobile devices covering laptop hardware, accessories, and configuration. Complete hands-on labs installing and replacing components. Target 100-150 practice questions on these domains.

Weeks 3-4: Core 1 Networking and Cloud

Focus on networking protocols, ports, wireless standards, and SOHO network configuration. Cover virtualization and cloud computing concepts. Practice configuring network settings and troubleshooting connectivity issues. Complete 150-200 practice questions covering networking and cloud domains.

Week 5: Core 1 Troubleshooting and Review

Study the troubleshooting methodology intensively. Work through scenario-based questions covering hardware and network problems. Take a full-length Core 1 practice exam and identify weak areas. Review and reinforce concepts where you scored below 80%.

Week 6: Core 2 Operating Systems

Dive into Windows administrative tools, command-line operations, Linux fundamentals, and macOS basics. Practice using Task Manager, Event Viewer, and command-prompt utilities in virtual machines. Complete 150+ practice questions on operating systems.

Week 7: Core 2 Security and Software Troubleshooting

Cover security threats, malware types, removal procedures, and workstation security configurations. Study software troubleshooting scenarios including BSOD, boot failures, and application errors. Complete 200+ practice questions across both domains.

Week 8: Core 2 Operational Procedures and Final Review

Complete operational procedures content covering documentation, change management, and communication. Take full-length practice exams for both Core 1 and Core 2. Focus remaining time on any domains scoring below 80%. Schedule your exam appointments.

Exam Day Tips and Strategies

Before the Exam

Get adequate sleep the night before—cramming won’t help and fatigue hurts performance. Arrive at the testing center 15-30 minutes early, or for online testing, ensure your environment meets Pearson VUE requirements (clear desk, closed room, valid ID). Eat a light meal and stay hydrated, but avoid excessive caffeine that might cause anxiety.

During the Exam

Performance-based questions (PBQs) typically appear at the beginning. These scenario-based questions can take 5-10 minutes each. If you feel stuck, flag them and continue to the multiple-choice questions—you can return to PBQs later with a clearer mind after building confidence from completed questions.

Read each question carefully, especially identifying negative keywords like “NOT,” “EXCEPT,” or “LEAST.” Many questions describe realistic scenarios—identify the actual problem being asked before reviewing answers. Eliminate obviously wrong answers to improve your odds on difficult questions.

Manage your time. With 90 questions in 90 minutes, you have approximately one minute per question on average. PBQs require more time, so move efficiently through standard multiple-choice questions to bank extra time.

Technical Strategies

For troubleshooting questions, apply the CompTIA methodology systematically. Questions often test whether you know to gather information before taking action or to document your findings after resolution.

When dealing with “best” answer questions, remember that multiple answers may be technically correct, but one aligns better with CompTIA’s recommended approach. Consider cost-effectiveness, least disruption, and security best practices when selecting answers.

Common Mistakes to Avoid

Mistake #1: Neglecting Performance-Based Questions

Problem: Candidates spend all study time on multiple-choice content and panic when facing PBQs that require hands-on command-line or configuration tasks.

Solution: Practice actual commands in virtual environments. Be comfortable navigating Windows administrative tools and using basic networking commands (ipconfig, ping, tracert). CertifHub’s practice platform includes scenario-based questions that simulate PBQ thinking.

Mistake #2: Underestimating Core 2 Difficulty

Problem: Many candidates breeze through Core 1 and assume Core 2 will be similar. The higher passing score (700 vs. 675) and broader content catch them off guard.

Solution: Allocate equal or more study time to Core 2. The operating systems domain alone covers Windows, Linux, macOS, Android, and iOS—each with distinct commands and interfaces.

Mistake #3: Memorizing Without Understanding

Problem: Rote memorization of port numbers or acronyms fails when questions present unfamiliar scenarios requiring conceptual understanding.

Solution: Focus on understanding why protocols use specific ports, how technologies work together, and when to apply different solutions. Conceptual understanding helps you reason through questions you haven’t seen before.

Mistake #4: Ignoring Operational Procedures

Problem: The “soft skills” domain seems easy and gets minimal study attention, leading to lost points on questions about documentation, change management, and professional communication.

Solution: This domain is 22% of Core 2—don’t skip it. Questions on incident response, ticketing workflows, and safety procedures are straightforward if you’ve reviewed the material.

Mistake #5: Testing Too Early

Problem: Eager candidates schedule exams before achieving consistent passing scores on practice tests, resulting in failed attempts and additional voucher costs.

Solution: Only schedule your exam when you’re consistently scoring 85% or higher on full-length practice exams. At $265 per voucher, a failed attempt is expensive.

Is CompTIA A+ Worth It in 2026?

The short answer: yes, especially if you’re entering IT without a relevant degree or prior experience. Here’s why the certification continues to deliver value.

Career Entry and Advancement

CompTIA A+ remains the most recognized entry-level IT certification globally. Major employers including Dell, Intel, HP, Nissan, and Blue Cross Blue Shield specifically recommend or require A+ for support roles. Government positions, particularly within the Department of Defense, mandate A+ for certain technical support and administrator roles under DoD 8140 requirements.

Entry-level positions accessible with A+ certification include IT support specialist, help desk technician, field service technician, desktop support analyst, and technical support representative. These roles provide the hands-on experience necessary to advance into higher-paying positions.

Return on Investment

With exam costs totaling $530 (plus study materials), the certification investment typically pays for itself within the first month of employment. Entry-level IT support positions average $45,000-$55,000 annually, with growth potential as you add experience and certifications. Compared to a four-year degree costing $50,000 or more, A+ certification offers a dramatically faster and more affordable entry into IT.

Foundation for Advanced Certifications

A+ certification establishes the foundation for CompTIA’s certification pathway. Most professionals follow A+ with Network+ (for networking specialization) or Security+ (for cybersecurity focus). These certifications build on A+ knowledge and command higher salaries—Security+ certified professionals often earn $65,000-$90,000. For those interested in broader IT certification strategies, our top 10 IT certifications for 2026 guide provides detailed guidance.

Who Benefits Most

A+ delivers the highest value for career changers without IT background, recent graduates seeking to demonstrate practical skills beyond academic credentials, current IT workers without formal certification, military personnel transitioning to civilian IT roles, and anyone seeking Department of Defense IT positions.

If you already have extensive IT experience or hold advanced certifications, A+ may be unnecessary—though some employers still require it for baseline credential verification.

Frequently Asked Questions

How long does it take to get CompTIA A+ certified?

Most candidates complete both exams within 2-4 months of dedicated study. Those with prior IT experience may finish faster, while complete beginners might need 4-6 months. Our 8-week study plan works well for candidates committing 10-15 hours weekly.

Can I take Core 2 before Core 1?

Yes, you can take the exams in either order. However, most candidates and instructors recommend Core 1 first because hardware and networking fundamentals support the operating systems and troubleshooting content in Core 2.

How long is the A+ certification valid?

A+ certification is valid for three years. You can renew by earning 20 Continuing Education Units (CEUs), passing a higher-level CompTIA certification (like Network+ or Security+), or retaking the current A+ exams.

Is the A+ exam difficult?

The exams are challenging but achievable with proper preparation. Pass rates aren’t officially published, but most training providers estimate 65-75% of adequately prepared candidates pass on their first attempt. Performance-based questions add difficulty, making hands-on practice essential.

Should I get A+ or jump straight to Security+?

It depends on your goals and background. A+ provides broader foundational knowledge ideal for general IT support roles. Security+ focuses specifically on cybersecurity and has no prerequisites. If you want to start in help desk or desktop support, choose A+. If you’re targeting cybersecurity roles specifically and have some IT background, Security+ may be the faster path. For cloud-focused careers, consider the AWS Cloud Practitioner certification as an alternative entry point.

Can I take the A+ exam online?

Yes, Pearson VUE offers online proctored testing through their OnVUE service. You’ll need a quiet, private room, stable internet connection, and a computer with webcam and microphone. Many candidates prefer online testing for convenience, though testing centers offer a controlled environment if home conditions aren’t ideal.

What’s the difference between the 220-1101/1102 and the new 220-1201/1202 exams?

The 220-1201 and 220-1202 exams (V15) launched in March 2025 and include updated content for current technologies. The 220-1101/1102 exams (V14) remain available until their retirement date. Both versions lead to the same A+ certification. Choose V15 if you’re starting fresh, as it covers the most current technologies.

How much do A+ certified professionals earn?

Entry-level A+ positions typically pay $40,000-$55,000 annually in the United States. With experience, salaries rise to $60,000-$80,000 for roles like desktop support analyst or IT specialist. Location significantly impacts pay—tech hubs like San Francisco and Seattle offer salaries 20-40% above national averages.

Do I need hands-on experience before taking the exam?

CompTIA recommends 12 months of hands-on IT support experience, but it’s not a formal requirement. Candidates without professional experience can compensate through home labs, virtual machines, and practice platforms like CertifHub. Hands-on familiarity with hardware installation, operating system configuration, and network troubleshooting significantly improves exam performance. Once you’ve earned your A+, advancing to CompTIA Security+ is a natural next step for cybersecurity careers.

What study materials are worth buying?

At minimum, you need the free exam objectives from CompTIA and a comprehensive question bank like CertifHub’s 2,500+ practice questions. Official CertMaster products offer excellent alignment with exam content but come at premium prices. Many successful candidates combine free video resources with paid practice exams for the best balance of cost and effectiveness.

Next Steps: Your Path to A+ Certification

The CompTIA A+ certification remains the most respected entry point into IT careers in 2026. With dedicated preparation using quality resources, you can pass both exams and launch your technology career within months.

Here’s your action plan:

Step 1: Download the official exam objectives from CompTIA.org and review the domain structure for both Core 1 and Core 2 exams.

Step 2: Set up your study environment—whether virtual machines for OS practice, a home lab for hardware experience, or simply a quiet space for consistent study sessions.

Step 3: Begin with CertifHub’s comprehensive practice questions to establish your baseline knowledge and identify weak areas requiring focused attention.

Step 4: Follow a structured study plan (like our 8-week guide above), tracking progress through practice exam scores until you consistently score above 85%.

Step 5: Schedule your exams through Pearson VUE once you’re achieving target scores. Many candidates find scheduling the exam creates accountability that sharpens focus during final preparation.

The IT industry continues growing, and certified professionals remain in demand across every sector. Your CompTIA A+ certification is the first step toward a career with strong earning potential, continuous learning opportunities, and genuine job security. Start your preparation today with CertifHub’s practice platform—where over 219 professionals have already built the confidence they needed to pass their exams.