CompTIA A+ Study Guide 2026: Everything You Need to Pass
The CompTIA A+ certification is one of the most respected entry-level IT certifications globally. Whether you're starting your IT career or validating your technical knowledge, this comprehensive guide will help you understand what the exam covers, how to prepare effectively, and ultimately pass both Core 1 and Core 2 exams on your first attempt.
This updated 2026 guide covers everything you need to know about the CompTIA A+ certification, including exam format, all five domains for each core exam, realistic study timelines, and proven strategies used by successful candidates.
Understanding the CompTIA A+ Exam Structure
Two-Part Exam Format
The CompTIA A+ is not a single test—it's two separate exams that must both be passed to earn the credential:
- 90 questions total (80 multiple choice + 10 performance-based)
- 90-minute time limit
- Minimum passing score: 675/900
- Cost: $159
- 90 questions total (80 multiple choice + 10 performance-based)
- 90-minute time limit
- Minimum passing score: 700/900
- Cost: $159
Important: You can take the exams in any order, but you need both passing scores to be certified. Many candidates take Core 1 first since it covers foundational concepts.
Performance-Based Questions Explained
Unlike traditional multiple-choice, performance-based questions (PBQs) require you to solve real-world scenarios in a simulated environment. You might be asked to:
- Configure network settings on a virtual computer
- Install and manage device drivers
- Troubleshoot connectivity issues
- Manage user accounts and permissions
These questions test practical knowledge, not just theoretical understanding. Hands-on lab practice is essential for mastering them.
Core 1 (220-1101) Exam Domains
Domain 1: Mobile Devices (12%)
Covers installation, configuration, and troubleshooting of laptops, tablets, and mobile devices. Key topics include:
- SOHO network installation and configuration
- Mobile device hardware and accessories
- Mobile OS configuration (iOS, Android, Windows)
- Network connectivity (WiFi, cellular, Bluetooth)
- Security on mobile devices
Domain 2: Networking (20%)
The largest Core 1 domain. Covers network fundamentals, hardware, and protocols:
- TCP/IP models and OSI model
- IP addressing and subnetting
- Network cables and connectors
- Routers, switches, firewalls, and access points
- Common protocols (DNS, DHCP, HTTP, HTTPS)
- Network troubleshooting basics
Domain 3: Hardware (27%)
The heaviest weighted domain. Requires hands-on knowledge of PC components:
- CPU, RAM, motherboards, and storage devices
- Power supplies and cooling systems
- Peripherals (monitors, printers, scanners)
- BIOS/UEFI configuration
- Hardware installation and upgrades
- Troubleshooting hardware failures
Domain 4: Virtualization and Cloud Computing (11%)
Cloud computing is increasingly important in IT roles:
- Virtualization concepts and hypervisors
- Cloud service models (IaaS, PaaS, SaaS)
- Connecting to cloud services
- Cloud storage and backups
Domain 5: Hardware and Network Troubleshooting (30%)
Problem-solving is critical. This domain tests your ability to diagnose and resolve:
- POST (Power-On Self-Test) failures
- Boot issues and startup problems
- Network connectivity problems
- Printer troubleshooting
- Device driver issues
- Overheating and performance problems
Core 2 (220-1102) Exam Domains
Domain 1: Operating Systems (31%)
The largest Core 2 domain covers Windows, macOS, and Linux:
- Windows installation, updates, and features
- macOS and Linux basics
- Command line tools (Windows, Mac, Linux)
- File systems (NTFS, FAT32, etc.)
- User account management
- System utilities and management tools
Domain 2: Security (27%)
Security is critical in modern IT roles:
- Malware types and prevention
- Authentication methods and access control
- Encryption and certificate management
- Firewalls and security protocols
- Physical security best practices
- Social engineering and security threats
Domain 3: Software Troubleshooting (22%)
Practical troubleshooting of software and OS issues:
- Application installation and updates
- System and application crashes
- Performance optimization
- Disk management and cleanup
- BSOD (Blue Screen of Death) troubleshooting
Domain 4: Operational Procedures (12%)
Professional IT practices and best practices:
- Change management procedures
- Data backup and recovery
- Safety procedures and proper equipment handling
- Environmental controls
- Professionalism and customer service
Domain 5: Scripting and Remote Access (8%)
Automation and remote management basics:
- PowerShell scripting fundamentals
- Remote access tools (RDP, SSH)
- Basic automation concepts
CompTIA A+ Study Timeline
How Much Time Do You Need?
Study duration depends heavily on your background:
- No Technical Background: 4-6 months, studying 10-15 hours/week
- Some IT Experience: 8-12 weeks, studying 12-15 hours/week
- Relevant Work Experience: 4-8 weeks, 10-12 hours/week
- Study Goal: 80-100 hours minimum of focused study
Sample 8-Week Study Plan
Study Core 1 Domains 1-2 (Mobile Devices & Networking). Complete online course modules. Take initial practice quiz.
Master Core 1 Domain 3 (Hardware). Do hands-on labs. Build a test machine if possible. Complete practice questions for domains 1-3.
Finish Core 1 Domains 4-5. Begin Core 2 Domain 1 (Operating Systems). Take full Core 1 practice exam.
Study Core 2 Domains 2-4 (Security, Troubleshooting, Operations). Take practice tests for both cores.
Review weak areas. Take final practice exams. Schedule and take both Core 1 and Core 2 exams (you can do them on the same day if confident).
Expert Study Tips to Pass CompTIA A+
1. Combine Multiple Learning Methods
Don't rely on a single resource. Use a combination of:
- Video courses (Professor Messer, Udemy, CompTIA approved training)
- Study guides and textbooks
- Hands-on labs and virtualization
- Practice exams and quizzes
- Community forums and study groups
2. Focus on Weak Domains
Not all domains are equally important. Remember the percentages:
- Core 1: 30% Troubleshooting + 27% Hardware = 57% on 2 domains
- Core 2: 31% OS + 27% Security = 58% on 2 domains
Master these heavily-weighted domains first.
3. Hands-On Lab Practice Is Essential
The exam includes performance-based questions. You need practical experience:
- Build a test system or use virtualization software
- Install operating systems (Windows, Linux, macOS)
- Configure networks and troubleshoot connectivity
- Practice device driver installation
- Work with Command Line tools (PowerShell, CMD)
4. Take Practice Exams Regularly
Use GetMyCert's free CompTIA A+ practice exams to assess your readiness. Take a practice exam at least once per week, more as your exam date approaches.
5. Master the Command Line
Modern IT demands command line proficiency:
- Learn Windows PowerShell and Command Prompt
- Practice Linux/Mac terminal basics
- Common commands appear frequently on the exam
6. Join a Study Group
Connect with other candidates through:
- Reddit communities (r/CompTIA, r/A+)
- Discord study servers
- LinkedIn groups
- Local tech meetups
Common CompTIA A+ Study Mistakes
Theoretical knowledge alone won't pass the exam. You need practical experience with hardware, software, and network configuration. Build test systems and practice problem-solving.
Many candidates focus only on multiple-choice practice. The 10 PBQs on each exam carry significant weight. Find practice exams that include performance-based scenarios.
Simply memorizing facts without understanding concepts leads to failure. Focus on why things work, not just what they are.
Trying to cram for A+ rarely works. Most successful candidates study for 8-12 weeks. Give yourself adequate time to absorb material and practice.
The exam changes regularly. Use 2026 materials, not guides from 2023 or earlier. Study official CompTIA resources and current training courses.
The operational procedures domain tests professionalism, customer service, and communication. Don't skip this content.
Essential Study Resources
Recommended CompTIA A+ Study Materials
- Official CompTIA Study Guides: "CompTIA A+ Study Guide" by Todd Lammle
- Video Courses: Professor Messer (free), Udemy, Pluralsight
- Hands-On Labs: VirtualBox (free), VMware, Microsoft Hyper-V
- Practice Exams: GetMyCert free practice tests, Exam Cram, Kaplan
- Community: r/CompTIA on Reddit, CompTIA official forums
What to Expect on Exam Day
Arrive Early: Plan to arrive 15 minutes before your scheduled exam time.
ID Requirements: Bring two forms of identification (one with photo). No digital IDs or smartphone photos.
Testing Environment: You'll take the exam on a secure computer at a Pearson Vue testing center. No personal items, notes, or materials allowed.
Time Management: You have 90 minutes per exam. That's roughly 1 minute per question plus time for review. Don't spend too much time on difficult questions—flag them and come back.
Immediate Results: You'll receive a preliminary pass/fail score before leaving the testing center.
Ready to Pass CompTIA A+?
Start your certification journey today with GetMyCert's free CompTIA A+ practice exams. Get comprehensive quizzes that cover all domains and question types.
Take Free CompTIA A+ Practice ExamFinal Thoughts
The CompTIA A+ certification is achievable with focused study and hands-on practice. The key is understanding the exam structure, mastering the heavily weighted domains, and gaining practical experience in a lab environment. Start with a realistic study timeline, use multiple resources, and take practice exams regularly.
Many successful IT professionals have begun their careers with the CompTIA A+ certification. With determination and the right preparation strategy, you can join them.