2026 Edition

CompTIA A+ Cyber
Study Guide Companion

Free online resources to accompany your study guide — interactive flashcards, practice quizzes, lab setup guides, quick reference cards, and more.

⚠️ Note on Security+ Objectives: CompTIA updated the SY0-701 exam objectives in July 2026. Before beginning your Security+ preparation, confirm the current objectives at comptia.org.

What's Inside

Everything you need to supplement your study guide and prepare for the CompCert assessment.

9 Domains, 24 Chapters

The study guide covers every CompTIA A+ Cyber domain in depth — here's the full map.

Domain 1 — Cybersecurity Support RolesCh. 1–2
Domain 2 — Managing SystemsCh. 3–5
Domain 3 — Secure Network ClientsCh. 6–8
Domain 4 — Enterprise Campus NetworksCh. 9–11
Domain 5 — Cybersecurity ControlsCh. 12–14
Domain 6 — Automation ScriptingCh. 15–16
Domain 7 — Protecting DataCh. 17–19
Domain 8 — Analyzing & Responding to ThreatsCh. 20–22
Domain 9 — Building a Cybersecurity FoundationCh. 23–24

About the Book

The CompTIA A+ Cyber Study Guide, 2026 Edition is the definitive companion for the CompTIA A+ Cyber course — a beginner-friendly, fast-track program designed to build foundational cybersecurity knowledge and earn your CompCert (Competency Certificate).

Written by Eric Tomchik, this 227-page guide covers all nine A+ Cyber domains with in-depth explanations, real-world scenarios, hands-on lab exercises, and a full 110-question practice assessment.

24 Chapters 10 Hands-On Labs 110 Practice Questions

What You'll Master

  • 🛡️ Cybersecurity team structures & roles
  • 🪟 Windows security & Active Directory
  • 🐧 Linux system administration & hardening
  • 🌐 Network security & VPN configuration
  • 🏢 Enterprise network infrastructure
  • 🔒 IDS/IPS, incident response & vulnerability management
  • ⚙️ Bash scripting & automation
  • 🔐 Encryption, backups & data protection
  • 🕵️ Threat analysis, risk assessment & forensics
  • 🚀 Security architecture & Security+ preparation

About the Author

Eric Tomchik

Eric Tomchik is a cybersecurity professional and entrepreneur with deep expertise in Linux system administration, network security, and IT infrastructure. He holds CompTIA A+, CompTIA Network+ (CompTIA CIOS), Microsoft AZ-900, Microsoft SC-900, and LPI Linux Essentials certifications. Eric is passionate about making cybersecurity education accessible to everyone and dedicated to staying current with the latest developments in the field.

CompTIA A+ Network+ AZ-900 SC-900 LPI Linux Essentials

Ready to Start Studying?

Grab the book, set up your lab environment, and use these companion resources to ace your CompCert.