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220-1201 Cheat Sheet (High-Yield Review)

Last-minute review of key differences, traps, and high-yield topics.

Updated: 2026-02-25 ⭐️ User Reviews ✅ Free Checklist PDF
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Quick answers

  • AuthN vs AuthZ: identity proof vs permissions.
  • Hashing vs encryption: integrity vs confidentiality.
  • MFA, least privilege, segmentation: core controls that appear everywhere.
  • SIEM vs EDR: logs/correlation vs endpoint detection/response.

Use this A+ cheat sheet for fast revision: troubleshooting process, what to check first, and what tools solve common problems.

The goal is speed: recognize the situation, pick the best next step, and avoid time-wasting rabbit holes.

Do the mini quiz to test your quick recall, then continue in the app to practice offline with full explanations.

Free Practice Test

10 random questions from the CompTIA A+ Cheat Sheet (220-1201 & 220-1202) bank. Instant feedback.

Question 1/10

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Who is this for?

  • You want a quick baseline: 10-question mini test
  • You plan to practice offline with packs in the app
  • You want explanations + exam-style timed mode

Why use PrepMaster?

  • Works Offline: Study anywhere, no internet needed.
  • Detailed Explanations: Understand the logic behind every answer.
  • 100% Free Access: Unlock everything via rewarded video ads.

High-yield review list

  • Identity: MFA, SSO, federation, least privilege, RBAC concepts.
  • Crypto: hashing vs encryption, symmetric vs asymmetric, certificates/PKI use-cases.
  • Detection: SIEM basics (logs/correlation), alert triage, baseline vs anomaly.
  • Endpoint: EDR vs AV, isolation/quarantine, containment ideas.
  • Incident response: identify → contain → eradicate → recover → lessons learned.

Topics & Skills Covered

  • Troubleshooting flow (identify → test → fix → verify)
  • Windows tools & utilities (concept-level)
  • Networking basics for support
  • Security hygiene for endpoints

Helpful Free Tools

📅 Study Plan
Create a custom schedule based on your exam date.
⏱ Exam Timer
Simulate exam pressure with a countdown.
📊 Score Predictor
Estimate your readiness based on practice scores.

Frequently Asked Questions

Is a cheat sheet enough to pass A+?

No. Use it for revision, but passing requires practice questions and troubleshooting-style thinking.

What should I revise last?

Troubleshooting steps, Windows tools, basic networking, printers, and security best practices.

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