Free CLF-C02 practice exam: AWS Cloud Practitioner exam guide
Official domains, format, cost, and common mistakes on the CLF-C02. How to practice with the Brains4Cloud guide, deep dive, labs, and practice exam.
The CLF-C02 (AWS Certified Cloud Practitioner) is AWS's entry-level certification: it requires no prior technical experience and validates that you understand the AWS cloud, its core services, basic security, and its billing model. It's the most common starting point before the SAA-C03.
What you need to know about the exam
| Questions | 65 (multiple choice and multiple response) |
| Duration | 90 minutes |
| Reference cost | USD 100 |
| Passing score | 700 out of 1000 (scaled) |
| Validity | 3 years |
| Prerequisites | None |
Official domains and their weight
| Domain | Approximate weight | Main content |
|---|---|---|
| Cloud concepts | 24% | Benefits of the cloud, deployment models |
| Security and compliance | 30% | Shared responsibility model, IAM |
| Cloud technology and services | 34% | EC2, S3, VPC, core services |
| Billing, pricing, and support | 12% | Pricing models, support plans, Trusted Advisor |
Official weights according to AWS's public blueprint — confirm the current version before your exam.
Security and compliance is the largest block, which surprises people who expect the exam to be purely about "what each service does". The shared responsibility model alone is one of the topics that comes up most often, in different forms.
Common mistakes that make people fail
- ▸Underestimating the security block because it seems "basic". It's 30% of the exam — more than pure technology.
- ▸Mixing up pricing models. On-demand vs Reserved vs Spot generates scenario questions that ask you to choose the most cost-effective model for the case.
- ▸Not practicing at the real pace. 65 questions in 90 minutes is 1.4 minutes per question — without timed practice, it's easy to run short on time.
How to prepare with Brains4Cloud
- ▸Complete CLF-C02 guide — a summary of the four domains with examples and glossary links for every key term.
- ▸CLF-C02 Deep Dive — each topic broken down with comparisons of services and pricing models.
- ▸CLF-C02 interactive labs — practice in a guided environment, without needing your own AWS account.
- ▸Practice exam — original questions at the real exam pace, with an explanation for every option. Create your free account and start practicing.
Frequently asked questions
Do I need to know how to code for the CLF-C02? No, it's an exam on conceptual fundamentals, also aimed at non-technical profiles (sales, project management, finance).
How long should I study? 2-4 weeks of moderate study is usually enough, even with no prior cloud experience.
What comes after the CLF-C02? The natural next step is the SAA-C03 if you're aiming for an architect role, or specialty certifications if your interest is security, data, or AI on AWS.
Put what you learned to the test
Original practice exams with detailed explanations. No brain dumps.