AWS Certified Cloud Practitioner (CLF-C02) is the entry point for the AWS certification path — and a surprisingly common first-attempt failure for candidates who underestimate the breadth of services it covers. The exam tests cloud concepts, AWS architecture, security and compliance, and billing and pricing across four domains, each requiring conceptual understanding rather than hands-on skills.
Here are the five best CLF-C02 practice test options in 2026.
Quick comparison
| Platform | Price | Questions | Readiness Tracking | Domain Drilling | Best for |
|---|---|---|---|---|---|
| Courseiva | Free | 600+ | Yes — Readiness Score | Yes — per domain | Complete free prep |
| AWS Skill Builder | Free | ~20 (official) | No | No | Official baseline assessment |
| Stephane Maarek (Udemy) | $15–20 | 300+ | No | No | Video learners |
| Whizlabs | $15–20 | 400+ | Basic | No | Budget paid option |
| TutorialsDojo | $15–20 | 400+ | Basic | No | AWS-specialist practice |
1. Courseiva — Best free CLF-C02 practice test (most complete option)
Courseiva's CLF-C02 practice test covers all four Cloud Practitioner domains — Cloud Concepts, Security and Compliance, Cloud Technology and Services, and Billing, Pricing, and Support — with questions proportional to their official blueprint weights.
Here is what distinguishes it from every other free option:
Exam Readiness Score
CLF-C02 spreads its 700-question bank across four domains with different weights. Courseiva's Exam Readiness Score tracks your accuracy, coverage, and weak-area trends into a clear pass/prepare signal. You know when your preparation is genuinely ready for the exam rather than guessing after a single practice test.
Domain Proficiency Tracking
Cloud Technology and Services carries 33–36% of CLF-C02 — the largest domain, covering EC2, S3, RDS, Lambda, and dozens of other services. Your domain proficiency dashboard shows your accuracy per domain after every session. If your Billing and Pricing score is trailing while Cloud Concepts is already strong, you know exactly where to focus next.
Per-Domain Practice Sessions
From the CLF-C02 domains hub, drill a single domain in isolation — 10, 20, 30, or 50 questions scoped to that topic. AWS service selection questions (S3 vs EFS vs EBS, Lambda vs EC2 vs Fargate) are where most candidates lose marks. Drilling Cloud Technology in isolation is the fastest way to master AWS service categories.
Adaptive Practice & Weakest-Target Mode
Adaptive practice routes sessions toward areas where your accuracy is weakest. Weakest-target mode concentrates your session on the domains and question types currently costing you the most marks. For CLF-C02, this typically surfaces AWS pricing models, the Shared Responsibility Model, and IAM concepts.
Timed Practice & Mock Exams
CLF-C02 allows 90 minutes for approximately 65 questions. Timed practice trains you to pace accurately. Full mock exams run at 30, 60, or 65 questions — take a 65-question timed mock in your final study days to simulate real exam conditions.
Crash Mode
Crash Mode compresses your missed questions, bookmarks, and lowest-accuracy domains into one intensive session. For CLF-C02 candidates on a 1–2 week study plan, running Crash Mode the evening before the exam is one of the highest-value things you can do.
Missed Questions Review & Bookmarks
Incorrect answers are automatically saved to Missed Questions Review. Bookmark the AWS service comparisons that trip you up — Support plan differences, pricing model comparisons, compliance program coverage. Review them before your mock exam without any manual note-taking.
Performance Analytics & Flashcards
Your performance dashboard shows accuracy trends and domain performance over time. CLF-C02 flashcards cover AWS service definitions, pricing model differences, and compliance certifications — the quick-recall content CLF-C02 consistently tests.
Verdict: The most complete free CLF-C02 practice platform in 2026. Use it from day one.
2. AWS Skill Builder — Official free assessment
AWS's own Skill Builder platform includes a free CLF-C02 practice assessment with approximately 20 questions. These match the real exam's style precisely.
Pros: Free. Official AWS source. Questions mirror real exam style. Cons: Only ~20 questions. No performance tracking, no domain filtering, no adaptive practice.
Verdict: Take it at the start to assess your baseline. Not a complete study resource.
3. Stephane Maarek — Best for video learners
Stephane Maarek's CLF-C02 Udemy course includes practice tests often available at $15–20. His video content is the most popular AWS fundamentals resource on Udemy, and the practice questions align well with the exam.
Pros: Clear video instruction. Questions match exam style. Affordable during sales. Cons: Primarily a video course — practice questions are supplementary. No domain proficiency tracking or readiness scoring.
Verdict: Excellent if you prefer video-first learning. Pair with Courseiva for volume, tracking, and adaptive drilling.
4. Whizlabs — Budget paid option
Whizlabs offers 400+ CLF-C02 questions at $15–20 with timed exam mode and basic performance tracking.
Pros: Affordable. Good volume. All domains covered. Cons: Explanation quality varies. Some questions are generic. No adaptive practice or readiness score.
Verdict: Acceptable budget option if you want a second resource alongside Courseiva.
5. TutorialsDojo — AWS-specialist practice
TutorialsDojo specialises in AWS certification practice and their CLF-C02 content is well-regarded. Questions are realistic and the explanations include useful cheat sheet references.
Pros: AWS-specialist quality. Good explanations. Scenario-based questions. Cons: Paid ($15–20). No adaptive practice or readiness tracking. Smaller community than Udemy alternatives.
Verdict: One of the better paid CLF-C02 options if you want a second resource after Courseiva.
How to use Courseiva for CLF-C02 prep
Days 1–2: Cloud Concepts. Drill 20–30 domain-specific questions. Read every explanation. Days 3–5: Cloud Technology and Services — the largest domain. Focus on service selection, categories, and trade-offs. Days 6–7: Security and Compliance, then Billing and Pricing. Check your domain proficiency dashboard daily. Final 1–2 days: 65-question timed mock exam. Crash Mode the evening before. Aim for 80%+.
Frequently asked questions
How hard is CLF-C02? Harder than the "fundamentals" label suggests. The service breadth — 200+ AWS services — catches candidates who haven't systematically reviewed each domain. Structured practice with domain tracking makes a significant difference.
What is the CLF-C02 passing score? 700 out of 1000 (scaled). Aim for 80%+ on practice tests to give yourself a comfortable margin.
Is Courseiva's CLF-C02 practice test free? Yes — all questions are free. A free account unlocks Exam Readiness Score, domain proficiency tracking, adaptive sessions, and performance analytics.
Verdict
Courseiva for free daily practice and exam readiness tracking. AWS Skill Builder's official assessment for a real-style baseline check. That combination is sufficient to pass CLF-C02 first time.