Full exam simulation
65 questions · 90 minutes, 15 unscored and not identified. One question per screen, flag and strike-out, a review screen and a score report per domain — no answers until you finish.
Cloud concepts, security, core services and billing — the entry point to AWS certification.
Independent practice — not affiliated with or endorsed by Amazon Web Services. CLF-C02 is used only to identify the exam. Trademark notices
Share of scored content per domain. Every sitting draws questions by these weights.
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65 questions · 90 minutes, 15 unscored and not identified. One question per screen, flag and strike-out, a review screen and a score report per domain — no answers until you finish.
The full sitting with 30 extra minutes (120 min) — the accommodation non-native English speakers can request for exams in English.
20 questions · 28 min, same weights, all scored. A daily check.
20 questions aimed at your weakest domains, missed concepts and due reviews.
Pick domains, topics, how many questions and which pool (new, wrong, due, low confidence). Spaced repetition with confidence ratings, flashcards and a mistake book.
Open practiceOne domain, up to 20 questions.
Benefits of the AWS Cloud, Well-Architected design principles, migration strategies (AWS Cloud Adoption Framework) and cloud economics.
Practice domain 1 →The shared responsibility model; security, governance and compliance concepts; access management (IAM, root user, MFA); security services and resources.
Practice domain 2 →Ways to deploy and operate in AWS, the global infrastructure, and the core compute, database, network, storage, AI/ML and analytics services.
Practice domain 3 →Pricing models (On-Demand, Reserved, Savings Plans, Spot), billing, budgets and cost tools, and AWS Support plans and technical resources.
Practice domain 4 →Domain names and weights come from the official CLF-C02 exam guide (checked 2026-10-26). Always check it for the authoritative scope.
Two of this exam's original questions, with the explanation you get after every answer.
A retail company buys enough on-premises servers to handle its Black Friday peak. For the rest of the year, most of that hardware sits idle. Which advantage of cloud computing directly addresses this problem?
Correct: A. With the cloud you can scale up and down on demand instead of provisioning for a peak you have to guess in advance, which is the 'stop guessing capacity' advantage. Economies of scale explain lower prices, while global reach and agility do not solve idle peak capacity.
Which problems does the cloud advantage 'stop guessing capacity' help a company avoid? (Select TWO.)
Correct: B, C. Guessing capacity up front leads either to expensive idle capacity (over-provisioning) or to limited capacity during peaks (under-provisioning); with on-demand scaling you avoid both. Encryption, Region choice, and software licensing are unrelated to capacity planning.