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AZ-900 Cheat Sheet (High-Yield Review)

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

Updated: 2026-02-24 ⭐️ User Reviews ✅ Free Checklist PDF
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Quick answers

  • S3/EBS/EFS: know when each fits.
  • ALB vs NLB: L7 features vs L4 performance.
  • Security Group vs NACL: stateful vs stateless.
  • Multi-AZ vs Read Replica: HA vs read scaling.

Need a fast AZ-900 review? This cheat sheet focuses on high-yield fundamentals and the service differences that appear most often.

Start with the mini test, then review only what you miss — that’s the fastest way to improve.

Continue in PrepMaster for offline packs, explanations, and exam-style timing.

Free Practice Test

10 random questions from the Microsoft Azure Fundamentals (AZ-900) — Cheat Sheet 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

  • S3: durability, storage classes, lifecycle, replication.
  • EC2: ASG + ALB patterns, placement, EBS vs instance store.
  • VPC: routing, security groups vs NACLs, endpoints.
  • Databases: RDS vs DynamoDB, Multi-AZ basics, read replicas.
  • CloudFront: caching + origin patterns, signed URLs/cookies basics.

Topics & Skills Covered

  • IaaS vs PaaS vs SaaS (simple examples)
  • Compute basics (VMs vs Functions vs Containers)
  • Storage basics (Blob tiers, redundancy basics)
  • Governance & pricing basics (SLA, cost tools)

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 AZ-900?

Use it for review, then practice questions to confirm you can match services to scenarios.

What should I prioritize last-minute?

Service categories, common comparisons, and pricing/SLA basics.

How do I learn faster?

Mini test → review mistakes → repeat. Keep sessions short but daily.

Can I study offline?

Yes. Download packs once and practice offline.

Do you have an Exam Day Checklist (PDF)?

Yes. Get the free checklist here: https://exam-studios.com/exam-day-checklist/.

Related AZ-900 pages

AZ-900 Core Services & Categories — Quick Map + Free Mini Test
A quick map of AZ-900 core Azure services by category (compute, storage, networking, identity). Start with a free mini test, then practice offline in the app.
AZ-900 Exam Domains & Topics — What to Study + Free Mini Test
Understand AZ-900 domains and what the exam tests. Take a free mini test, find weak areas, then practice offline in the app with explanations.
AZ-900 Exam Simulator — Timed Practice + Free Mini Test
Train AZ-900 with timed practice and a simple mistake-review workflow. Start with a free mini test, then continue offline in the app with explanations.
AZ-900 Flashcards — Quick Daily Review + Free Mini Test
Use AZ-900 flashcards the right way: focus on service differences and use-cases. Start with a free mini test, then practice offline in the app.
AZ-900 Practice Questions (Offline) — Free Mini Test
Free AZ-900 mini test. Continue in the app for offline packs, detailed explanations, and exam-style practice.
AZ-900 Study Plan (14 Days) — Daily Routine + Free Mini Test
A practical 14-day AZ-900 study plan: daily practice, focused review, and timed sets. Start with a free mini test, then continue offline in the app.

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