How to Pass CompTIA A+ Core 2 (220-1202) in 2026: Complete Study Guide

CompTIA A+ is the most widely recognized entry-level IT certification in the world — and it requires passing two exams. Core 1 (220-1201) covers hardware and networking. Core 2 (220-1202) covers the software side: operating systems, security, software troubleshooting, and the operational procedures that govern real helpdesk work. This guide walks through all four domains, explains how Core 2 differs from Core 1, and gives you a focused 6-week study plan to reach the 70% passing score (900/1100) on exam day.

Exam Format and Key Facts

Core 1 vs Core 2: What Changes?

Many candidates underestimate Core 2 because they assume it is the "easier" of the two exams. In practice, Core 2 demands a different type of knowledge — procedural, policy-oriented, and security-focused rather than hardware-centric.

All 4 Domains Explained

Domain 1: Operating Systems — 31%

The largest domain. You need working knowledge of Windows 10 and Windows 11 (edition differences, upgrade paths, system requirements), plus familiarity with macOS and Linux at the command-line level. Key topics include:

• Windows editions: Home, Pro, Enterprise — feature differences (BitLocker, Remote Desktop, Hyper-V, Group Policy)
• Windows file systems: NTFS, FAT32, exFAT — when each is appropriate
• Windows tools: msconfig, Task Manager, Event Viewer, Registry Editor, Disk Management
• Active Directory and workgroup environments
• macOS features: Time Machine, Finder, Terminal, Keychain
• Linux command basics: ls, pwd, chmod, grep, ps, apt/yum
• OS installation types: clean install, upgrade, image deployment

Domain 2: Security — 22%

Security is the most policy-heavy domain. You are expected to know specific CompTIA-prescribed procedures, not just concepts.

• Malware types: virus, worm, trojan, ransomware, spyware, rootkit, keylogger
• The CompTIA 7-step malware removal process (identify, quarantine, disable System Restore, remediate, update, scan again, document)
• Encryption: BitLocker (drive-level), EFS (file/folder-level), TPM requirements
• Windows Defender: real-time protection, quarantine, exclusions
• User Account Control (UAC): consent prompt vs credential prompt
• Wireless security: WPA2 vs WPA3, RADIUS, enterprise vs personal
• Social engineering: phishing, vishing, tailgating, shoulder surfing

Domain 3: Software Troubleshooting — 26%

The second-largest domain tests your ability to diagnose and fix real problems in Windows, browsers, and applications.

• Windows troubleshooting tools: sfc /scannow, DISM, chkdsk, msconfig Safe Boot
• Boot failures: startup repair, bootrec /fixmbr, bootrec /rebuildbcd
• Application crashes: event logs, compatibility mode, reinstallation
• Profile and login issues: corrupted profile, account lockout, permissions
• Browser issues: cache clearing, extensions, DNS cache (ipconfig /flushdns)
• Mobile OS troubleshooting: factory reset, app issues, synchronization

Domain 4: Operational Procedures — 21%

Covers the professional practices every IT technician must follow. This domain is often underestimated but regularly trips up candidates on exam day.

• Documentation: change management, asset inventory, network diagrams, ticketing systems
• Change management: request, approval, testing, rollback plan
• Backup types: full, incremental, differential — retention and rotation policies
• Disaster recovery: RTO vs RPO, failover, redundancy
• Safety and environmental: ESD prevention, proper disposal (MSDS/SDS), power protection (UPS vs surge protector)
• Professionalism and communication: privacy policies, licensing (EULA, open source), incident reporting
• Scripting: PowerShell (.ps1), batch (.bat), Python (.py) — use cases, not deep code writing

6-Week Study Plan

This plan assumes 1–1.5 hours per day. Weeks 1 and 3 are the highest priority given the domain weights.

Performance-Based Questions Strategy

Performance-based questions (PBQs) appear at the start of the exam and simulate real tasks in a drag-and-drop, click-through, or simulated OS environment. They take significantly more time than standard multiple-choice questions. Use this strategy:

• Skip and return: If a PBQ looks complex, flag it and move through all multiple-choice questions first. Return to PBQs at the end with remaining time.
• Read the scenario carefully: PBQs often test procedure order (e.g., malware removal steps) or matching tools to use cases (e.g., which Windows tool shows startup programs).
• Elimination works: Even in drag-and-drop PBQs, eliminating clearly wrong placements can get you partial credit.
• Common PBQ topics: Setting NTFS permissions, configuring Windows Defender, matching script types to file extensions, ordering the malware removal process.

Best Study Resources

• Professor Messer's CompTIA A+ Course (free): Video series covering every objective. Available at professormesser.com. The single best free resource for A+ candidates.
• CompTIA CertMaster Learn: Official paid platform with adaptive learning, labs, and practice tests. Best if your employer reimburses training costs.
• Mike Meyers' CompTIA A+ Guide (book): Comprehensive textbook with end-of-chapter questions. Good for candidates who prefer reading over video.
• Jason Dion's Udemy Course: Affordable video course with strong practice question sets. Frequently discounted.
• CertLand A+ Core 2 Practice Exam: 340 practice questions covering all 4 domains with full explanations — includes 10 free preview questions, no login required.